Insecure Deserialization

Unauthenticated PHP object injection in the Themeton 'The Barber Shop' WordPress theme (versions up to and including 1.9) allows remote attackers to deserialize attacker-controlled data, potentially leading to arbitrary code execution, file manipulation, or full site compromise when a usable POP gadget chain is present. The flaw was disclosed via Patchstack and carries a CVSS 3.1 score of 9.8, though no public exploit identified at time of analysis and EPSS data was not provided. The vulnerability is rooted in CWE-502 (Deserialization of Untrusted Data), a class historically abused for RCE in WordPress plugin/theme ecosystems.

PHP object injection in the Themeton Lagom WordPress theme (versions up to and including 2.0) allows remote attackers to trigger unsafe deserialization of attacker-controlled data, potentially leading to full site compromise. The flaw is reported by Patchstack and carries a critical CVSS of 9.8 (AV:N/AC:L/PR:N/UI:N); no public exploit identified at time of analysis and the issue is not listed in CISA KEV.

PHP Object Injection in the Entrepreneur - Booking for Small Businesses WordPress theme through version 3.1.3 allows authenticated subscriber-level users to trigger unsafe deserialization, potentially leading to full site compromise. The flaw was disclosed via Patchstack and carries a CVSS 3.1 base score of 8.8 reflecting high impact on confidentiality, integrity, and availability. No public exploit identified at time of analysis.

Unauthenticated PHP Object Injection in the ThemeREX Plumbing WordPress theme versions 1.6 and earlier allows remote attackers to inject arbitrary PHP objects via untrusted deserialization, potentially leading to full site compromise when a suitable POP gadget chain is present. No public exploit identified at time of analysis, but the CVSS 9.8 rating and unauthenticated network attack vector make this a high-priority issue for any WordPress site running this theme.

Unauthenticated PHP object injection in the ThemeREX Reisen WordPress theme versions 1.4.1 and earlier allows remote attackers to trigger deserialization of attacker-controlled data without authentication. Successful exploitation can lead to full site compromise via gadget chains commonly available in WordPress core or active plugins, with CVSS rated 9.8 critical. No public exploit identified at time of analysis and the vulnerability is not listed in CISA KEV.

Unauthenticated deserialization of untrusted data in the Slimstat Analytics WordPress plugin (versions prior to 5.4.0) allows remote attackers to exploit PHP object injection without authentication. The CVSS vector indicates high attack complexity (AC:H) and scope change (S:C), meaning successful exploitation can affect components beyond the plugin itself - potentially the broader WordPress environment or server. No public exploit identified at time of analysis, and the fix version is confirmed as 5.4.0 per Patchstack reporting.

Unauthenticated PHP object injection in the ThemeREX Addons WordPress plugin (versions 2.36.1.1 and earlier) allows remote attackers to inject crafted serialized objects that are deserialized by the plugin, potentially leading to remote code execution, arbitrary file operations, or full site compromise when a suitable PHP gadget chain is present. The flaw is reachable without authentication and scores CVSS 9.8 (AV:N/AC:L/PR:N/UI:N) with full confidentiality, integrity, and availability impact. No public exploit identified at time of analysis, and the CVE is not currently listed in CISA KEV.

PHP Object Injection in the Counter Box WordPress plugin (all versions through 2.0.13) allows authenticated administrators to deserialize attacker-controlled input via the plugin's import functionality, with deserialization triggered automatically on the post-import redirect and again when any imported item is opened for editing. The vulnerability carries no standalone impact - exploitation is entirely contingent on a Property-Oriented Programming (POP) chain being present in a separately installed plugin or theme, at which point an attacker could achieve arbitrary file deletion, sensitive data retrieval, or remote code execution. No public exploit is identified at time of analysis, and the CVSS AC:H and PR:H ratings reflect both the administrative access requirement and the environmental dependency on co-installed POP chain software.

Unauthenticated PHP Object Injection in the ThemeREX SeaFood Company WordPress theme (versions ≤1.4) enables remote attackers to deliver crafted serialized payloads that trigger insecure deserialization within PHP, potentially leading to remote code execution, file manipulation, or full site compromise depending on available gadget chains in the host WordPress stack. Reported by Patchstack and tracked as EUVD-2025-210200, with no public exploit identified at time of analysis.

Unauthenticated PHP Object Injection in the ThemeREX Hot Coffee WordPress theme (versions ≤ 1.7) allows remote attackers to inject arbitrary serialized PHP objects, potentially triggering property-oriented programming (POP) chains that lead to remote code execution, arbitrary file operations, or full site compromise. The flaw was disclosed by Patchstack and carries a CVSS 9.8 due to network reachability with no authentication or user interaction, though no public exploit has been identified at time of analysis.

Unsafe deserialization in LangGraph SQLite Checkpoint's JsonPlusSerializer (versions 4.1.0 and prior) allows arbitrary Python object reconstruction from checkpoint payloads stored in a SQLite backing store, enabling code execution at checkpoint load time. Affected deployments are those where an unauthorized party can modify checkpoint bytes at rest - a high-privilege prerequisite (PR:H, AV:A per CVSS) that already implies a significant prior compromise. This is explicitly framed as a defense-in-depth concern: the issue escalates an existing 'checkpoint-store write access' incident into full application runtime code execution. No public exploit code or CISA KEV listing has been identified at time of analysis.

Remote code execution in GeoServer (versions prior to 2.27.0) with the DB2 extension installed allows authenticated administrators to perform a JNDI injection attack via a crafted DB2 JDBC connection URL submitted through the Vector Data Sources page, ultimately triggering Java deserialization of untrusted data and arbitrary code execution. No public exploit identified at time of analysis, and the vulnerability is not on CISA KEV, but the attack pattern follows well-known JNDI/Log4Shell-style RCE techniques. Risk is meaningful only where the DB2 extension is deployed and an administrative account is reachable.

Insecure deserialization in Broadcom Layer 7 API Gateway 11.2.1 exposes organizations to remote code execution or broken security control enforcement when an adversary can intercept and tamper with traffic between a client application and the gateway. The CVSS 4.0 vector assigns High subsequent-system confidentiality impact (SC:H), reflecting the gateway's privileged position as a broker to downstream backend services - meaning a successful exploit can cascade beyond the gateway itself. No public exploit code has been identified at time of analysis, and the vulnerability is not listed in the CISA KEV catalog, but the RCE potential and architectural sensitivity of an API gateway make this a meaningful priority for affected deployments.

Cross-site scripting in Microsoft SharePoint Server (2016, 2019, and Subscription Edition) enables low-privileged authenticated attackers to perform spoofing attacks over a network without requiring user interaction. The CVSS vector (AV:N/AC:L/PR:L/UI:N) confirms network-reachable exploitation by any authenticated SharePoint user with no further interaction required from a victim. No public exploit identified at time of analysis and CISA SSVC classifies exploitation status as none, though vendor patches are available for all three affected product lines.

PHP Object Injection in TYPO3 CMS's cache frontend (VariableFrontend) and persistent key-value store (Registry) exposes TYPO3 installations to potential Remote Code Execution when an attacker controls write access to the underlying storage layer. The root cause is bare PHP `unserialize()` calls on storage-retrieved data without HMAC integrity validation or class allowlists, meaning attacker-controlled data in the `sys_registry` table or cache backend can trigger deserialization of crafted PHP objects through a gadget chain. No public exploit has been identified at time of analysis and no CISA KEV listing exists; however, the CVSS 4.0 Subsequent impact scores (SC:H/SI:H/SA:H) confirm that successful exploitation yields full system-level impact despite the local access prerequisite.

PHP Object Injection in the LearnPress - Backup & Migration Tool WordPress plugin (versions ≤ 4.1.4, by ThimPress) allows authenticated administrators to supply maliciously crafted serialized data through the plugin's import functionality, triggering unsafe PHP deserialization. The vulnerability itself carries no direct impact in isolation - exploitation is contingent on a separate plugin or theme installing a usable POP (Property-Oriented Programming) chain on the same site, at which point an attacker can escalate to arbitrary file deletion, sensitive data retrieval, or remote code execution. No public exploit code and no CISA KEV listing have been identified at time of analysis, and the CVSS score of 6.6 (High complexity, High privileges required) reflects the constrained real-world conditions.

Unsafe deserialization in FoundationAgents MetaGPT versions up to and including 0.8.2 allows a local low-privileged attacker to achieve confidentiality, integrity, and availability impact by manipulating the `mapping` argument passed to `Message.check_instruct_content` in `metagpt/schema.py`. Publicly available exploit code (POC) exists via a GitHub issue report, elevating practical risk despite the local-only attack vector. No vendor patch has been released - the project was notified via issue report but has not responded, leaving installations without a remediation path.

Deserialization restriction bypass in QOS.CH Sarl logback-core affects all versions through 1.5.33, allowing unauthenticated network attackers with the ability to influence serialized data to instantiate Java Proxy objects via SimpleSocketServer or SimpleSSLSocketServer. Despite the 'RCE' tag in source intelligence, the vendor explicitly states that no practical path to remote code execution or significant privilege escalation has been identified - this is a security boundary bypass of the HardenedObjectInputStream defense mechanism, not a full compromise vector. A proof-of-concept exists (CVSS E:P), though CVSS 4.0 scores the overall risk at 2.9 due to high attack complexity and prerequisite deployment conditions.

Cross-DAG log file disclosure in Apache Airflow’s log server allows authenticated users to bypass JWT authorization using a Python lstrip() character-stripping flaw. Affected versions 3.0.0 through 3.2.1 can be exploited to read unauthorized log files from other DAGs. A proof-of-concept exists, but exploitation likelihood is extremely low (EPSS 0.01%) and the impact is limited to low confidentiality.

The event log detail endpoint in Apache Airflow before 3.2.2 applies a generic DAG-level audit log permission check rather than scoping authorization to the specific DAG that owns the requested event log entry, allowing any authenticated low-privilege user to read audit log entries belonging to DAGs outside their permitted scope. The flaw is a broken object-level authorization (IDOR) pattern - classified as CWE-639 - where the user-supplied `event_log_id` path parameter can reference log rows from unauthorized DAGs without triggering a rejection. No public exploit code exists and the issue is not listed in CISA KEV, but the attack is trivially executable by any authenticated Airflow user in a multi-tenant deployment.

Authenticated PHP Object Injection in the WooCommerce Infinite Scroll and Ajax Pagination WordPress plugin (versions up to and including 1.8) allows Subscriber-level users to deserialize attacker-controlled data via the 'settings' parameter of the import_settings function. While the plugin itself contains no usable POP chain, the presence of any vulnerable gadget in another installed plugin or theme can escalate this into arbitrary file deletion, sensitive data disclosure, or remote code execution. There is no public exploit identified at time of analysis, but the low privilege barrier and ubiquity of WordPress gadget chains make this a meaningful risk for multi-plugin sites.

Security restriction bypass in logback-core's HardenedObjectInputStream allows limited object injection via logback's SimpleSocketServer and SimpleSSLSocketServer components, affecting all versions through 1.5.32 inclusive. An attacker who can influence serialized data submitted to these socket server endpoints can instantiate objects from java.lang and java.util classes not explicitly blocked by the hardened deserializer, circumventing its intended allowlist controls. The vendor and NVD both confirm no practical remote code execution or significant privilege escalation has been identified; the real-world impact is limited confidentiality and integrity exposure. No public exploit identified at time of analysis beyond E:P proof-of-concept maturity indicated in the CVSS vector. Not listed in CISA KEV.

Unsafe deserialization in Jenkins Active Directory Plugin 2.41 and earlier allows a remote attacker holding administrative credentials to achieve full system compromise by manipulating the LDAP referral processing path. The plugin deserializes data received from LDAP referrals without validation (CWE-502), which can enable arbitrary code execution on the Jenkins controller. No public exploit exists at time of analysis, and CISA SSVC assesses this as not automatable, though technical impact is rated total - making it a targeted rather than opportunistic threat.

Jenkins LDAP Plugin versions up to and including 807.v7d7de30930cf deserializes Java objects returned via LDAP referral responses without any validation, exposing the underlying Jenkins instance to potential remote code execution via classic Java deserialization gadget chains. Exploitation is constrained by a high privilege requirement and high attack complexity (CVSS PR:H/AC:H), limiting realistic scenarios to attackers who already hold Jenkins administrative credentials or can manipulate LDAP referral destinations. No public exploit code has been identified and this vulnerability does not appear in the CISA KEV catalog at time of analysis.

Unsafe deserialization in changmingxie tcc-transaction (versions up to 2.1.0) allows a remotely authenticated attacker with low privileges to exploit the Fastjson AutoType feature via the REST API, achieving limited confidentiality, integrity, and availability impact on the affected system. A proof-of-concept exploit exists (CVSS 4.0 E:P), referenced in a public GitHub bug report, though EPSS probability sits at just 0.04% (12th percentile) and SSVC assesses exploitation as none at time of analysis, indicating no observed active abuse. The vendor was notified prior to disclosure but did not respond, meaning no official patch has been released.

Unsafe deserialization in NVIDIA TensorRT-LLM's MPI server component allows a high-privileged local attacker to achieve code execution, denial of service, data tampering, or information disclosure on systems running the affected library. The CVSS 7.5 score reflects high impact but constrained exploitability (AV:L/AC:H/PR:H), and no public exploit identified at time of analysis. Scope change (S:C) indicates compromise can extend beyond the vulnerable component to impact other resources on the host.

Deserialization vulnerability in H2O-3 machine learning platform versions up to 7402 enables remote code execution through the importBinaryModel function when processing malicious JAR files. The vulnerability allows unauthenticated remote attackers to execute arbitrary code with publicly available exploit code (CVSS 7.3, EPSS not provided). The vendor failed to respond to disclosure attempts, leaving users without an official patch.

Unsafe deserialization in Oinone Pamirs versions up to 7.2.0 allows authenticated remote attackers to potentially execute arbitrary code via crafted JSON payloads to the appConfigQuery interface. The vulnerability exists in JsonUtils.parseMap within PamirsParserConfig.java, where attacker-controlled data is deserialized without proper validation. Public exploit code is available on GitHub, though EPSS and KEV data are not provided. CVSS 4.0 score of 2.1 reflects limited scope impact (VC:L/VI:L/VA:L with SC:N/SI:N/SA:N), requiring low-privilege authentication (PR:L) but featuring low attack complexity (AC:L) and network attack vector (AV:N). Vendor non-responsive to disclosure.

python jsonpickle 2.0.0 contains a remote code execution vulnerability that allows attackers to execute arbitrary Python commands by deserializing malicious JSON payloads containing py/repr objects. Rated critical severity (CVSS 9.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

DataHub frontend versions prior to 1.5.0.3 deserialize untrusted Java objects from the REDIRECT_URL HTTP cookie during OIDC callback flow without integrity protection, allowing authenticated attackers to read sensitive information. The vulnerability affects the GET /callback/oidc endpoint and requires a valid OIDC identity provider account to exploit. A vendor-released patch is available in version 1.5.0.3.

Denial-of-service in GitLab Enterprise Edition allows a crafted file upload to exhaust service availability through improper deserialization validation. The vulnerability spans an exceptionally wide range, affecting all GitLab EE instances from version 11.9 through the 18.11 line until patched releases. There is no public exploit identified at time of analysis and EPSS sits at 0.02% (4th percentile), indicating low observed exploitation pressure, though the breadth of the affected version range means unpatched installations represent a meaningful attack surface for availability disruption.

Server-side request forgery with deserialization characteristics in Sonatype Nexus Repository Manager 3.0.0 through 3.91.1 allows an authenticated administrator to initiate unintended outbound connections from the Nexus host by configuring or testing LDAP connectivity against an attacker-controlled LDAP server. The root cause is classified as CWE-502 (Deserialization of Untrusted Data), indicating that malicious serialized payloads returned by the rogue LDAP server may be processed by the Nexus application, yielding limited confidentiality and integrity impact on the host. No public exploit has been identified and CISA has not listed this in KEV; Sonatype has released a fix in version 3.92.0.

Insecure deserialization in CosyVoice's model loading pipeline permits arbitrary code execution on any system that loads a maliciously crafted model directory via the Web UI. The framework invokes torch.load() on model weight files (llm.pt, flow.pt, hift.pt) without the weights_only=True safety parameter, allowing Python's pickle module to deserialize and execute arbitrary objects embedded in those files. An attacker who can persuade a victim to point the CosyVoice Web UI at an attacker-controlled model directory - whether via a trojanized download, a shared malicious repository, or direct filesystem access - achieves code execution on the victim's machine at the moment of model loading. No public exploit code or CISA KEV listing is recorded at time of analysis; EPSS is 0.02% (5th percentile) and SSVC assesses exploitation as none, consistent with the social-engineering precondition required.

Authenticated PHP code execution in Netgate pfSense CE 2.7.2 arises when the module installer processes a backup file containing a serialized PHP object whose post_reboot_commands property is unserialized (CWE-502), causing attacker-defined commands to run after reboot. Exploitation requires an authenticated administrator (PR:H), and the vendor disputes the report because the installer is an admin-only feature that is intentionally permitted to execute PHP. Publicly available exploit code exists (SSVC exploitation: poc) via a Full Disclosure post, but there is no active-exploitation evidence and EPSS is negligible at 0.01%.

Allocation amplification in Zebra network deserializers allows unauthenticated remote peers to force excessive memory preallocation and parsing overhead across multiple message types (headers, blocks, transactions) by exploiting the use of generic transport/block-size ceilings instead of protocol-specific limits. An attacker can trigger 8.8x oversized header allocations, unbounded equihash solution parsing, and inflated Sapling spend vector allocations on inbound peer messages, causing denial of service through cumulative per-connection and multi-peer fan-in effects. CVSS 5.3 (AV:N/AC:L/PR:N/UI:N) indicates network-accessible, unauthenticated exploitation of default configurations; no public exploit identified at time of analysis, but vendor-released patch available in Zebra 4.4.0.

Unsafe deserialization in MindsDB pickle.loads function allows authenticated remote attackers to achieve limited information disclosure and integrity compromise via crafted serialized objects. The vulnerability affects MindsDB up to version 26.01, requires valid credentials (PR:L), and has publicly available exploit code; however, the low CVSS score (2.1) and limited scope indicate restricted real-world impact despite network accessibility.

Unsafe deserialization in SGLang's HuggingFace Transformer Handler allows remote attackers to trigger deserialization attacks via the get_tokenizer function in versions up to 0.5.9, potentially leading to code execution or information disclosure. The vulnerability requires high attack complexity and has not been patched despite early vendor notification.

Unsafe pickle deserialization in mem0 up to version 1.0.11 allows authenticated remote attackers to execute arbitrary code via manipulation of the faiss.py vector store module. The vulnerability affects the pickle.load/pickle.dump functions used to serialize docstore data, enabling code execution with moderate impact (confidentiality, integrity, availability). Public exploit code is available, and vendor has released a patched version.

Unsafe deserialization in Jenkins Matrix Authorization Strategy Plugin versions 2.0-beta-1 through 3.2.9 allows an authenticated user with Item/Configure permission to instantiate arbitrary Java classes from the Jenkins classpath by specifying class names in job configuration. The vulnerability arises because the plugin invokes parameterless constructors of user-specified classes when deserializing inheritance strategies without type restriction. No public exploit is identified at time of analysis, and SSVC signals exploitation as none, but the real-world impact depends on the richness of the Jenkins classpath - gadget classes available in that environment determine the attacker's effective reach.

Insecure deserialization in Grav CMS FileCache exposes low-privilege authenticated users to PHP object injection through the `FileCache::doGet()` method, which calls `unserialize()` with `['allowed_classes' => true]` on cache file contents without integrity verification. Versions 1.7.44 through 1.7.49.5 and 2.0.0-beta.0/beta.1 are affected; the component is not on Grav's default cache path but is reachable by plugins and downstream consumers. Publicly available exploit code exists demonstrating the deserialization primitive, though no active exploitation is recorded in CISA KEV and EPSS sits at 0.05%, reflecting negligible widespread exploitation risk.

Remote code execution in StellarGroup HPX 1.11.0 allows unauthenticated attackers to execute arbitrary code through insecure deserialization of untrusted input. Publicly available exploit code exists (GitHub Gist POC) with CISA SSVC classifying this as automatable with total technical impact, though EPSS indicates only 2% probability of exploitation in the wild. The CWE-502 vulnerability enables complete system compromise when untrusted data is deserialized under specific deployment conditions not detailed in the description.

Insecure deserialization in Cista v0.15 and below allows remote unauthenticated attackers to leak stack and heap addresses through reference tampering in the cista::raw namespace, potentially defeating ASLR protections. The vulnerability arises from insufficient validation of pointer-like objects during deserialization, enabling attackers to observe deserialized values and extract memory layout information for subsequent exploitation.

Unsafe deserialization in Apache DolphinScheduler RPC module (versions 3.2.0 to 3.3.0) allows authenticated network attackers to achieve remote code execution by injecting malicious class types into StandardRpcRequest messages sent to Master or Worker nodes. The vulnerability requires network access and valid credentials but carries moderate CVSS (6.3) with very low EPSS exploitation probability (0.02%), suggesting limited real-world weaponization despite the dangerous vulnerability class.

Remote code execution in the Pipecat voice/multimodal agent framework (Python) affects versions 0.0.41 through 0.0.93 when the optional, non-default LivekitFrameSerializer is enabled, because its deserialize() method feeds raw WebSocket bytes into pickle.loads() without validation. A malicious WebSocket client can send a crafted pickle payload to run arbitrary code on the server, and if the service listens on an external interface (e.g. 0.0.0.0) the attack is reachable over the network or internet. The issue is fixed in 0.0.94 (serializer removed); publicly available exploit code exists per the SSVC 'poc' status, but it is not listed in CISA KEV.

Improper error handling in free5GC AMF prior to version 1.4.3 allows remote attackers to invoke the HTTPUEContextTransfer handler with uninitialized request objects by sending requests with unsupported Content-Type headers. The missing default case in the Content-Type switch statement silently skips deserialization without raising an error, resulting in integrity loss when malformed or crafted payloads reach the processor with null/uninitialized state. CVSS score of 5.5 reflects low integrity impact; publicly available exploit code exists (E:P).

Fail-open request handling in free5GC UDR's POST /nudr-dr/v2/policy-data/subs-to-notify endpoint allows Policy Data notification subscriptions to be created with invalid, empty, or partially processed input after HTTP body read or deserialization failures. The handler fails to return after sending error responses (HTTP 500 for body read failure, HTTP 400 for deserialization failure), causing execution to continue and invoke the subscription processor with an uninitialized or malformed PolicyDataSubscription object. This is a logic flaw rather than memory corruption or remote code execution, but it violates fail-secure design principles for a write-capable API and may result in inconsistent subscription state or unintended database entries depending on downstream validation behavior.

Zebra cryptocurrency node prior to version 4.3.1 allocates excessive memory (up to 233,016 addresses) when deserializing addr/addrv2 protocol messages, even though the specification limits messages to 1,000 addresses. An attacker can trigger out-of-memory crashes by sending multiple oversized address messages over different connections. This is a network-accessible denial of service vulnerability affecting all Zebra versions before 4.3.1, with no public exploit code identified but straightforward to execute given the protocol specification.

Remote code execution in OpenText RightFax on Windows via unsafe deserialization allows unauthenticated attackers to execute arbitrary code. All versions through 25.4 are affected, spanning multiple major releases, with patches now available from OpenText. No public exploit or active exploitation has been identified at time of analysis, but the vulnerability is automatable and carries total technical impact.

Free5GC UDR service fails to terminate request processing after HTTP body retrieval or JSON deserialization errors in the PUT /nudr-dr/v2/policy-data/subs-to-notify/{subsId} endpoint, allowing unintended modification of Policy Data notification subscriptions with invalid or partially processed input. The handler lacks return statements following error responses, causing execution to continue to the downstream processor with uninitialized or empty subscription objects. No public exploit code or active exploitation has been confirmed; this is a robustness and input validation flaw affecting write operations on a core 5G network function.

Deserialization of untrusted data in Samsung Open Source Escargot JavaScript engine prior to commit 97e8115ab1110bc502b4b5e4a0c689a71520d335 allows local attackers without privileges to trigger a denial of service condition via process abort. The vulnerability exploits unsafe deserialization of Java objects, resulting in application termination rather than code execution. No public exploit code or active exploitation has been identified at the time of analysis.

wolfSSL versions up to 5.9.0 allow arbitrary memory deallocation via unsafe deserialization of poisoned session cache data. An attacker with high privileges who can inject a crafted session into the cache and trigger specific session restore API calls can cause memory corruption with availability impact. No public exploit code or active exploitation has been confirmed; the vulnerability requires precise conditions including local access, high privileges, and user interaction.

LangChain's f-string prompt-template validation allows information disclosure through attribute access and nested format-specifier injection in DictPromptTemplate and ImagePromptTemplate classes. Unauthenticated remote attackers can craft malicious template strings to expose internal object state, model context, or logs when templates are formatted with rich Python objects. Practical impact is limited to applications that accept untrusted template strings (not just variable values) and pass complex objects into template formatting; hardcoded templates and value-only user input are unaffected. Vendor-released patch available in langchain-core 0.3.84 and 1.2.28.

Unsafe deserialization in pytries datrie through version 0.8.3 enables remote code execution when loading untrusted trie files via Trie.load(), Trie.read(), or Trie.__setstate__(). Unauthenticated remote attackers can exploit this vulnerability by crafting malicious serialized trie objects; publicly available exploit code exists, and the maintainers have not yet addressed the issue despite early notification.

Unsafe deserialization in FedML-AI FedML's gRPC server allows unauthenticated remote attackers to achieve confidentiality, integrity, and availability compromise through malicious payloads sent to the sendMessage function in versions up to 0.8.9. EPSS data not available; no CISA KEV listing indicates no confirmed active exploitation at time of analysis. Vendor unresponsive to coordinated disclosure attempts, raising concerns about patch availability and ongoing risk for production deployments of this federated machine learning framework.

Unsafe deserialization in NASA cFS Pickle Module (versions up to 7.0.0) allows authenticated local attackers with low privileges to trigger remote code execution or information disclosure through the pickle.load() function. The vulnerability requires high attack complexity and local access, limiting its practical exploitation scope. Public exploit code is available, but the issue remains unpatched as of the last vendor update.

The serialize-javascript npm library versions prior to 7.0.5 contain a CPU exhaustion denial-of-service vulnerability triggered when processing specially crafted array-like objects with artificially large length properties, causing the serialization process to hang indefinitely and consume 100% CPU. The vulnerability affects npm package serialize-javascript (pkg:npm/serialize-javascript) and impacts applications that serialize untrusted or user-controlled objects, particularly those also vulnerable to prototype pollution or YAML deserialization attacks that could inject malicious payloads. No public exploit code has been identified, but the attack vector is network-accessible with high complexity, posing a moderate real-world threat in supply-chain and backend service contexts.

Prototype pollution in the locutus npm package's unserialize() function allows remote attackers to inject arbitrary properties into deserialized objects by crafting malicious PHP-serialized payloads containing __proto__ keys, enabling authorization bypass, property propagation attacks, and denial of service via method override. The vulnerability affects locutus versions prior to 3.0.25; publicly available exploit code exists demonstrating property injection, for-in propagation to real own properties, and built-in method disruption.

A deserialization vulnerability exists in the wvp-GB28181-pro project (a video streaming platform using GB28181 protocol) through version 2.7.4, specifically in the GenericFastJsonRedisSerializer implementation within the Redis configuration. The flaw allows unauthenticated remote attackers to exploit insecure deserialization through the API endpoint, potentially achieving code execution or data manipulation with low complexity. A public proof-of-concept exploit has been released on GitHub, significantly increasing the risk of active exploitation, and the vendor has not responded to disclosure attempts.

Plack::Middleware::Session::Cookie versions through 0.21 for Perl allows remote code execution. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

A deserialization of untrusted data vulnerability exists in Mikado-Themes Stål (a WordPress theme) that allows arbitrary object injection through unsafe unserialize() operations. Versions prior to 1.7 are affected. An attacker can exploit this to instantiate arbitrary PHP objects, potentially leading to remote code execution, data exfiltration, or site compromise depending on available gadget chains in the WordPress environment.

A deserialization of untrusted data vulnerability exists in Edge-Themes Kamperen WordPress theme versions prior to 1.3, allowing attackers to perform arbitrary object instantiation through object injection attacks. This CWE-502 vulnerability enables remote code execution or information disclosure without requiring authentication in many scenarios. While no CVSS score is currently published and KEV/EPSS data are unavailable, the vulnerability has been reported by Patchstack and affects all installations of the Kamperen theme below version 1.3.

A deserialization of untrusted data vulnerability exists in Edge-Themes Gracey WordPress theme versions prior to 1.4, allowing attackers to perform arbitrary object instantiation through object injection attacks. This CWE-502 vulnerability affects all installations of Gracey below version 1.4 and could enable remote code execution or other malicious actions depending on available gadget chains in the WordPress environment. No CVSS score, EPSS risk metric, or KEV status has been publicly assigned, but the vulnerability is documented by Patchstack with a patch available in version 1.4.

This is a deserialization of untrusted data vulnerability in the Mikado-Themes Halstein WordPress theme (versions prior to 1.8) that allows arbitrary object injection via CWE-502. An attacker can exploit this flaw to instantiate arbitrary PHP objects, potentially leading to remote code execution or information disclosure depending on available gadget chains. The vulnerability was reported by Patchstack and affects all versions of Halstein below 1.8; no CVSS score, EPSS data, or KEV status is currently published, limiting immediate risk quantification but indicating this is a serious deserialization flaw that should be patched urgently.

A deserialization of untrusted data vulnerability exists in Elated-Themes Leroux WordPress theme versions prior to 1.4, allowing unauthenticated attackers to perform arbitrary object instantiation through object injection attacks. An attacker can exploit this vulnerability to instantiate arbitrary PHP objects, potentially leading to remote code execution or information disclosure depending on available gadget chains in the WordPress environment. While no CVSS score or active KEV status is currently available, the vulnerability has been documented by Patchstack and assigned ENISA EUVD ID EUVD-2026-15861, indicating it is a recognized threat affecting WordPress installations using the vulnerable Leroux theme.

A deserialization of untrusted data vulnerability exists in Edge-Themes Archicon WordPress theme versions prior to 1.7, allowing attackers to perform arbitrary object instantiation through object injection attacks. This vulnerability, tracked as CWE-502, enables attackers to instantiate arbitrary PHP objects during the deserialization process, potentially leading to remote code execution or other malicious outcomes depending on available gadget chains in the WordPress environment. The vulnerability was reported by Patchstack and affects all versions of Archicon below 1.7, with a patch available in version 1.7 and later.

NVIDIA APEX for Linux contains a deserialization of untrusted data vulnerability that affects environments using PyTorch versions earlier than 2.6. An attacker with low privileges on an adjacent network can exploit this flaw to achieve code execution, denial of service, privilege escalation, data tampering, and information disclosure with scope change (CVSS 9.0 Critical). No KEV listing or public POC availability has been reported at this time.

NVIDIA Megatron-LM contains a critical unsafe deserialization vulnerability (CWE-502) in its hybrid conversion script that allows remote code execution when a user loads a maliciously crafted file. The vulnerability affects NVIDIA Megatron-LM installations and enables attackers to execute arbitrary code, escalate privileges, disclose sensitive information, and tamper with data. With a CVSS score of 7.8 and local attack vector requiring low privileges and no user interaction, this represents a significant risk for organizations using this large language model training framework.

NVIDIA Megatron LM contains an insecure deserialization vulnerability (CWE-502) in its quantization configuration loading mechanism that enables remote code execution. Attackers with local access and low privileges can exploit this flaw to execute arbitrary code, escalate privileges, disclose sensitive information, and tamper with data. The vulnerability has a CVSS score of 7.8 and affects all versions of NVIDIA Megatron LM based on available CPE data.

A deserialization vulnerability exists in PyTorch 2.10.0 within the pt2 Loading Handler component, allowing local attackers with low privileges to achieve confidentiality, integrity, and availability impacts through untrusted data processing. The vulnerability (CWE-502) is confirmed to have a publicly available exploit and has been reported to the project via pull request PR#176791, though remediation status remains unclear. With a CVSS score of 5.3 and exploitation probability marked as probable (E:P), this represents a moderate real-world risk primarily affecting local development and deployment environments.

This is a deserialization of untrusted data vulnerability (PHP Object Injection) in the TotalContest Lite WordPress plugin that allows authenticated attackers with high-level privileges to inject arbitrary PHP objects. The vulnerability affects all versions through 2.9.1 of the TotalContest Lite plugin from TotalSuite. With a CVSS score of 7.2, successful exploitation can lead to high impact on confidentiality, integrity, and availability of the affected system.

BMC FootPrints ITSM contains a critical deserialization vulnerability in ASP.NET VIEWSTATE handling that allows authenticated attackers to execute arbitrary code remotely. Versions 20.20.02 through 20.24.01.001 are affected, and attackers with valid credentials can fully compromise the application by injecting malicious serialized objects. Security researchers from watchTowr have published detailed analysis of this vulnerability, significantly increasing exploitation risk.

A deserialization of untrusted data vulnerability in the Themeton Finag WordPress theme allows remote attackers to inject malicious PHP objects without authentication. This affects all versions of Finag through 1.5.0. The vulnerability carries a critical CVSS score of 9.8 due to network-based exploitation requiring no privileges or user interaction, enabling attackers to achieve complete compromise of confidentiality, integrity, and availability.

A critical PHP object injection vulnerability exists in the Zuut WordPress theme due to insecure deserialization of untrusted data. The vulnerability affects all versions of Zuut through 1.4.2 and allows unauthenticated remote attackers to execute arbitrary PHP code, potentially leading to complete site compromise. With a CVSS score of 9.8, this vulnerability requires no privileges or user interaction and can be exploited over the network with low complexity.

Unsafe deserialization in TYPO3's mail transport extension permits arbitrary code execution when an attacker with write access to the configured spool directory supplies malicious serialized objects during transport failure handling. The vulnerability stems from inadequate class whitelisting during deserialization and requires local filesystem access to exploit. No patch is currently available.

This issue affects Apache Spark: before 3.5.7 and 4.0.1.

Inductive Automation Ignition Software is vulnerable to an unauthenticated API endpoint exposure that may allow an attacker to remotely change the "forgot password" recovery email address. [CVSS 6.3 MEDIUM]

Unsafe deserialization in Alfresco Activiti up to versions 7.19 and 8.8.0 allows authenticated remote attackers to achieve arbitrary code execution through the Process Variable Serialization System component. An attacker with valid credentials can manipulate serialized objects during deserialization to execute malicious code on the affected system. Public exploit code is available and no patch has been released by the vendor.

LimeSurvey before v6.15.0 has an insecure deserialization enabling remote code execution through crafted survey data.

Arbitrary code execution with administrative privileges in Schneider Electric EcoStruxure Power Monitoring Expert (2022 through 2024 R2) and EcoStruxure Power Operation (2022, 2024) allows a locally authenticated attacker to run code by sending a crafted data stream that triggers unsafe object deserialization (CWE-502). Authentication is required (CVSS 4.0 PR:L) and the vector is local, but successful exploitation fully compromises the host with high confidentiality, integrity, and availability impact. There is no public exploit identified at time of analysis, and the EPSS probability is very low (0.07%, 20th percentile).

LangGraph SQLite Checkpoint versions 1.0.9 and prior are vulnerable to unsafe deserialization of msgpack-encoded objects, allowing attackers with write access to the checkpoint database to execute arbitrary code when checkpoints are loaded. This vulnerability affects Python-based AI/ML applications using LangGraph's persistence layer and requires adversary control of the backing storage to exploit. No public patch is currently available for this issue.

Deserialization of untrusted data in Classter (classter) WordPress theme allows PHP Object Injection, potentially enabling remote code execution through POP chains.

Pickle deserialization RCE in Step-Video-T2V via API endpoints.

Chamilo LMS prior to 1.11.30 has an insecure deserialization vulnerability enabling remote code execution through crafted serialized data.

Chamilo is a learning management system. Prior to version 1.11.30, Chamilo is vulnerable to deserialization of untrusted data in /plugin/vchamilo/views/import.php via POST configuration_file; POST course_path; POST home_path parameters. [CVSS 4.9 MEDIUM]

Chamilo is a learning management system. Chamillo is affected by a post-authentication phar unserialize which leads to a remote code execution (RCE) within versions 1.11.12 to 1.11.26. [CVSS 7.2 HIGH]

Super Stage WP WordPre versions up to 1.0.1 is affected by deserialization of untrusted data (CVSS 6.5).

Uncontrolled resource consumption in hex_core, hex, and rebar3 package managers results from unsafe deserialization of untrusted data in API request handling, enabling remote attackers to trigger excessive memory allocation and denial of service without authentication. Affected versions include hex_core before 0.12.1, hex before 2.3.2, and rebar3 before 3.27.0, with no patch currently available. An attacker can exploit this remotely over the network to exhaust system resources and crash affected Erlang/Elixir build environments.

Remote code execution in LangGraph's caching layer affects applications that explicitly enable cache backends inheriting from BaseCache with nodes opted into caching via CachePolicy. An attacker can exploit unsafe deserialization through pickle when msgpack serialization fails, allowing arbitrary code execution on affected systems. This vulnerability requires explicit cache configuration and does not affect default deployments.

The Print Service component of Fiserv Originate Loans Peripherals (formerly Velocity Services) in unsupported version 2021.2.4 (build 4.7.3155.0011) uses deprecated .NET Remoting TCP channels that allow unsafe deserialization of untrusted data.

Unsafe deserialization in the RedisCache component of datapizza-ai 0.0.2 allows authenticated local network attackers to achieve limited information disclosure and integrity compromise through manipulation of cache operations. Public exploit code exists for this vulnerability, and the vendor has not provided a patch despite early notification. Exploitation requires local network access and elevated privileges, making practical attacks difficult but feasible in trusted environments.