Canonical

Improper synchronization of the userTokens map in Canonical Juju API server (versions 4.0.5, 3.6.20, and 2.9.56) enables authenticated users to trigger denial of service or reuse single-use discharge tokens due to a race condition. The vulnerability requires low privilege authentication and partial attacker timing control but allows complete availability impact to the server. EPSS score of 6.1 reflects moderate real-world exploitation risk, though no public exploit code or active exploitation has been confirmed.

Session isolation bypass in OpenClaw 2026.3.11 through 2026.3.24 allows authenticated attackers to access parent or sibling sessions bypassing visibility restrictions. The vulnerability exploits session_status logic that resolves sessionId to canonical session keys before enforcing explicit sessionKey-based access controls, enabling sandboxed child sessions to read data from sessions they should not access. No public exploit identified at time of analysis. Impacts confidentiality of session data across isolation boundaries in multi-tenant or sandboxed deployment scenarios.

Privilege escalation in Canonical LXD 4.12 through 6.7 enables remote authenticated restricted TLS certificate users to gain cluster admin privileges. Exploitation requires high-privilege authentication (PR:H) but no user interaction. The vulnerability stems from missing Type field validation in doCertificateUpdate function when processing PUT/PATCH requests to the certificates API endpoint. Attack scope is changed (S:C), allowing attackers to break containment and achieve full cluster compromise with high impact to confidentiality, integrity, and availability. No public exploit identified at time of analysis.

Backup import in Canonical LXD before 6.8 bypasses project security restrictions, enabling privilege escalation to full host compromise. An authenticated remote attacker with instance-creation permission in a restricted project crafts malicious backup archives containing conflicting configuration files: backup/index.yaml passes validation, while backup/container/backup.yaml (never validated) carries forbidden directives like security.privileged=true or raw.lxc commands. Exploiting this dual-file validation gap allows unrestricted container creation that breaks isolation boundaries. No public exploit identified at time of analysis.

Privilege escalation in Canonical LXD 4.12-6.7 allows authenticated remote attackers with VM instance editing rights to bypass project restrictions via incomplete denylist validation. Attackers inject AppArmor rules and QEMU chardev configurations through unblocked raw.apparmor and raw.qemu.conf keys, bridging the LXD Unix socket into guest VMs. Successful exploitation enables escalation to LXD cluster administrator and subsequently to host root access. No public exploit identified at time of analysis. Authenticated remote exploitation (PR:H) with cross-scope impact on confidentiality, integrity, and availability.

OpenTelemetry Go OTLP HTTP exporters allow memory exhaustion when sending telemetry to attacker-controlled or network-intercepted collector endpoints. The trace, metric, and log exporters read unbounded HTTP response bodies into in-memory buffers without size limits, enabling an attacker to force large transient heap allocations and crash the instrumented process via out-of-memory conditions. Attack requires network control of the collector endpoint or man-in-the-middle position (CVSS 5.3, CVSS:3.1/AV:A/AC:H). Upstream fix available (PR #8108); no active exploitation confirmed.

Path traversal via symlink in LiquidJS npm package allows authenticated template contributors to read arbitrary filesystem content outside configured template roots. The vulnerability affects applications where untrusted users can influence template directories (uploaded themes, extracted archives, repository-controlled templates). LiquidJS validates template paths using string-based directory containment checks but fails to resolve canonical filesystem paths before file access, enabling symlinks placed within allowed partials/layouts directories to reference external files. Publicly available exploit code exists. No EPSS score available, but impact is limited to information disclosure in specific deployment scenarios requiring attacker filesystem access.

Resource exhaustion in OpenTelemetry Go propagation library (v1.41.0 and earlier) enables remote attackers to trigger severe CPU and memory amplification via crafted HTTP baggage headers. The vulnerability allows unauthenticated attackers to send multiple baggage header lines that bypass the 8192-byte per-value parse limit by triggering repeated parsing operations - achieving 77x memory amplification (10.3MB vs 133KB per request) in vendor-provided proof-of-concept testing. Vendor-released patch available in v1.41.0. EPSS data not available; no confirmed active exploitation (not in CISA KEV); publicly available exploit code exists (vendor-provided PoC demonstrating 77x amplification).

Repository-scoped authorization bypass in distribution container registry allows restored read access to explicitly deleted blobs when Redis caching is enabled. Affects distribution/distribution v2.8.x and v3.0.x when both storage.cache.blobdescriptor: redis and storage.delete.enabled: true are configured. Unauthenticated remote attackers can retrieve sensitive content deleted from repo A after repo B repopulates the shared Redis descriptor cache, exposing confidential data that operators believed was permanently revoked. CVSS 7.5 (High). Publicly available exploit code exists with deterministic PoC demonstrating the state-machine race condition. EPSS data not provided, but the low attack complexity (AC:L) and no privilege requirement (PR:N) indicate straightforward exploitation once the vulnerable configuration is identified.

Server-Side Request Forgery (SSRF) in Directus headless CMS allows authenticated attackers (or unauthenticated users with public file-import permissions) to bypass IP address deny-list protections and access internal network resources. Attackers exploit IPv4-Mapped IPv6 address notation (e.g., ::ffff:127.0.0.1) to circumvent validation logic, enabling unauthorized requests to localhost services, internal databases, caches, APIs, and cloud instance metadata endpoints (AWS/GCP/Azure IMDS). With CVSS 7.7 (AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N) indicating low attack complexity, network accessibility, and scope change with high confidentiality impact, this represents a significant risk for data exfiltration from cloud environments and internal infrastructure. No public exploit identified at time of analysis, though the technical details in the advisory provide clear exploitation guidance.

Elected validator proposers in nimiq/core-rs-albatross before version 1.3.0 can submit election macro blocks with malformed interlink headers that bypass proposal validation but are rejected during block finalization, causing denial of service by halting consensus after Tendermint voting completes. The vulnerability requires high privileges (validator proposer role) and results in network availability impact but no data compromise, affecting the Nimiq Proof-of-Stake network's consensus reliability.

Identity confusion in prompts.chat (prior to commit 1464475) enables authenticated attackers to impersonate users and hijack profile URLs by creating case-variant usernames (e.g., 'Alice' vs 'alice'). Inconsistent case-handling between write and read operations allows bypass of uniqueness validation, letting attackers inject malicious content on canonical victim profiles. EPSS data not available; no public exploit identified at time of analysis, though attack complexity is low (CVSS:4.0 AC:L) requiring only low-privilege access (PR:L). VulnCheck disclosed this vulnerability with vendor patch released via GitHub commit.

Path traversal via symlink/junction bypass in @tinacms/graphql FilesystemBridge allows authenticated remote attackers with low privileges to read, write, and delete arbitrary files outside the configured content root. The vulnerability exploits a realpath canonicalization gap where path validation checks lexical string paths but filesystem operations follow symlink targets. Attack complexity is high (CVSS AC:H) as it requires pre-existing symlinks/junctions within the content tree or the ability to create them. EPSS data not provided; no CISA KEV listing indicates no confirmed active exploitation. Vendor-released patch available via commit f124eabaca10dac9a4d765c9e4135813c4830955.

TinaCMS CLI media handlers can be bypassed via symlink/junction traversal, allowing authenticated low-privilege attackers to list, write, and delete files outside the configured media root directory. The vulnerability exists in @tinacms/cli's dev server media routes despite recent path-traversal hardening, because validation performs only lexical string checks without resolving symlink targets. Attack complexity is high (requires pre-existing symlink under media root), but impact is significant with confirmed read/write primitives. Vendor patch available via GitHub commit f124eaba. EPSS and KEV data not provided; no public exploit identified at time of analysis beyond researcher's local Windows junction proof-of-concept.

Traefik reverse proxy and load balancer versions prior to 2.11.42, 3.6.11, and 3.7.0-ea.3 allow authenticated attackers to inject canonical HTTP header names that override non-canonical headers configured via the `headerField` setting, enabling identity impersonation to backend systems. The vulnerability exploits HTTP header handling inconsistencies where backends read the attacker-supplied canonical header before Traefik's non-canonical configuration, permitting authentication bypass for any identity. Vendor-released patches are available for all affected major versions.

The digitalbazaar/forge npm package accepts forged Ed25519 signatures due to missing scalar canonicalization checks, allowing authentication and authorization bypass in applications that rely on signature uniqueness. All versions since Ed25519 implementation are affected (confirmed through version 1.3.3), identified as pkg:npm/node-forge. Publicly available exploit code exists with a complete proof-of-concept demonstrating how attackers can create multiple valid signatures for the same message by adding the group order L to the scalar component S, bypassing deduplication, replay protection, and signed-object canonicalization checks. The vendor has released a patch via commit bdecf11571c9f1a487cc0fe72fe78ff6dfa96b85.

Signature forgery in node-forge npm package (all versions through v1.3.3) allows remote attackers to bypass RSASSA PKCS#1 v1.5 signature verification for RSA keys using low public exponent (e=3). Attackers can construct Bleichenbacher-style forged signatures by injecting malicious ASN.1 content within DigestInfo structures and exploiting missing padding length validation, enabling authentication bypass in systems relying on forge for cryptographic verification. Proof-of-concept code demonstrates successful forgery against forge while OpenSSL correctly rejects the same signature. CVSS score 7.5 (High) with network attack vector, low complexity, and no privileges required. No public exploit identified at time of analysis beyond the research POC.

An authenticated path traversal vulnerability in Langflow's file upload functionality allows attackers to write arbitrary files anywhere on the host system, leading to remote code execution. The vulnerability affects Langflow version 1.7.3 and earlier, where the multipart upload filename bypasses security checks due to missing boundary containment in the LocalStorageService layer. A proof-of-concept exploit is publicly available demonstrating successful arbitrary file write outside the intended user directory.

A critical validation bypass vulnerability in the ormar Python ORM library allows attackers to completely skip all Pydantic field validation by injecting a special '__pk_only__' parameter in JSON request bodies. This affects all applications using ormar's canonical FastAPI integration pattern (where ormar models are used directly as request body parameters), enabling attackers to persist invalid data, bypass security constraints, and potentially escalate privileges. A working proof-of-concept demonstrates the vulnerability is trivially exploitable, and with a CVSS score of 7.1, it poses significant risk to affected applications.

An authorization bypass vulnerability in gRPC-Go allows attackers to circumvent path-based access control by sending HTTP/2 requests with malformed :path pseudo-headers that omit the mandatory leading slash (e.g., 'Service/Method' instead of '/Service/Method'). This affects gRPC-Go servers using path-based authorization interceptors like google.golang.org/grpc/authz with deny rules for canonical paths but fallback allow rules. The vulnerability has a CVSS score of 9.1 (Critical) with network-based exploitation requiring no privileges or user interaction, enabling attackers to access restricted services and potentially exfiltrate or modify sensitive data.

Path traversal in ApostropheCMS import-export module allows authenticated users with content modification permissions to write files outside the intended export directory via malicious archive entries containing directory traversal sequences. An attacker with editor-level access can exploit this vulnerability to overwrite arbitrary files on the system with CVSS 9.9 critical severity. No patch is currently available for this vulnerability affecting Node.js environments.

OpenClaw prior to version 2026.3.2 allows local users with standard privileges to write files outside designated directories through insufficient path validation in the browser output handler. An attacker can exploit this path-confinement bypass to place malicious files in arbitrary filesystem locations, potentially leading to privilege escalation or system compromise.

SFTPGo versions prior to 2.7.1 contain a path normalization vulnerability (CWE-22: Improper Limitation of a Pathname to a Restricted Directory) that allows authenticated attackers to bypass folder-level permissions and escape Virtual Folder boundaries through crafted file paths. An attacker with valid credentials can exploit this authorization bypass to access files and directories beyond their intended scope. The vulnerability has been patched in version 2.7.1 with strict edge-level path normalization, and while no public POC or KEV status has been disclosed, the CVSS 5.3 (network-accessible, low complexity) and requirement for prior authentication suggest this is a real but moderate-priority issue.

The Linux kernel bonding driver contains a use-after-free vulnerability in the slave device initialization path that allows local attackers with user privileges to cause memory corruption or denial of service. The flaw occurs when slave array updates happen before XDP setup completion, enabling the new slave to be used for transmission before being freed by error cleanup handlers. This affects Debian, Ubuntu, and other Linux distributions running vulnerable kernel versions.

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: debugfs: Fix legacy mode page table dump logic In legacy mode, SSPTPTR is ignored if TT is not 00b or 01b.

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid NULL pointer dereference in f2fs_check_quota_consistency() syzbot reported a f2fs bug as below: Oops: gen[. No vendor patch available.

In the Linux kernel, the following vulnerability has been resolved: scsi: mpt3sas: Fix crash in transport port remove by using ioc_info() During mpt3sas_transport_port_remove(), messages were logged.

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Check for NOT_READY flag state after locking Currently the check for NOT_READY flag is performed before obtaining the necessary lock.

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_set_rbtree: fix null deref on element insertion There is no guarantee that rb_prev() will not return NULL in nft_rbtree_gc_elem(): general protection fault,...

CVE-2023-53557 is a security vulnerability (CVSS 5.5). Remediation should follow standard vulnerability management procedures. Vendor patch is available.

CVE-2023-53547 is a security vulnerability (CVSS 5.5). Remediation should follow standard vulnerability management procedures. Vendor patch is available.

In the Linux kernel, the following vulnerability has been resolved: tipc: do not update mtu if msg_max is too small in mtu negotiation When doing link mtu negotiation, a malicious peer may send Activate msg with a very small mtu, e.g. 4 in Shuang's testing, without checking for the minimum mtu, l->mtu will be set to 4 in tipc_link_proto_rcv(), then n->links[bearer_id].mtu is set to 4294967228, which is a overflow of '4 - INT_H_SIZE - EMSG_OVERHEAD' in tipc_link_mss(). With tipc_link.mtu = 4, tipc_link_xmit() kept printing the warning: tipc: Too large msg, purging xmit list 1 5 0 40 4! tipc: Too large msg, purging xmit list 1 15 0 60 4! And with tipc_link_entry.mtu 4294967228, a huge skb was allocated in named_distribute(), and when purging it in tipc_link_xmit(), a crash was even caused: general protection fault, probably for non-canonical address 0x2100001011000dd: 0000 [#1] PREEMPT SMP PTI CPU: 0 PID: 0 Comm: swapper/0 Kdump: loaded Not tainted 6.3.0.neta #19 RIP: 0010:kfree_skb_list_reason+0x7e/0x1f0 Call Trace: <IRQ> skb_release_data+0xf9/0x1d0 kfree_skb_reason+0x40/0x100 tipc_link_xmit+0x57a/0x740 [tipc] tipc_node_xmit+0x16c/0x5c0 [tipc] tipc_named_node_up+0x27f/0x2c0 [tipc] tipc_node_write_unlock+0x149/0x170 [tipc] tipc_rcv+0x608/0x740 [tipc] tipc_udp_recv+0xdc/0x1f0 [tipc] udp_queue_rcv_one_skb+0x33e/0x620 udp_unicast_rcv_skb.isra.72+0x75/0x90 __udp4_lib_rcv+0x56d/0xc20 ip_protocol_deliver_rcu+0x100/0x2d0 This patch fixes it by checking the new mtu against tipc_bearer_min_mtu(), and not updating mtu if it is too small.

A privilege escalation flaw from host to domain administrator was found in FreeIPA. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

In the Linux kernel, the following vulnerability has been resolved: atm: atmtcp: Prevent arbitrary write in atmtcp_recv_control(). Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.

In the Linux kernel, the following vulnerability has been resolved: hfs: fix general protection fault in hfs_find_init() The hfs_find_init() method can trigger the crash if tree pointer is NULL: [. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. This NULL Pointer Dereference vulnerability could allow attackers to crash the application by dereferencing a null pointer.

In the Linux kernel, the following vulnerability has been resolved: neighbour: Fix null-ptr-deref in neigh_flush_dev(). Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. This NULL Pointer Dereference vulnerability could allow attackers to crash the application by dereferencing a null pointer.

In the Linux kernel, the following vulnerability has been resolved: HID: apple: validate feature-report field count to prevent NULL pointer dereference A malicious HID device with quirk. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.

In the Linux kernel, the following vulnerability has been resolved: lib/alloc_tag: do not acquire non-existent lock in alloc_tag_top_users() alloc_tag_top_users() attempts to lock. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. This NULL Pointer Dereference vulnerability could allow attackers to crash the application by dereferencing a null pointer.

Claude Code is an agentic coding tool. Rated high severity (CVSS 7.7), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Race condition in Canonical apport up to and including 2.32.0 allows a local attacker to leak sensitive information via PID-reuse by leveraging namespaces. Rated medium severity (CVSS 4.7). Public exploit code available and no vendor patch available.

The All in One SEO - Powerful SEO Plugin to Boost SEO Rankings & Increase Traffic plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the post Meta Description and Canonical URL. Rated medium severity (CVSS 6.4), this vulnerability is remotely exploitable, low attack complexity. This Cross-Site Scripting (XSS) vulnerability could allow attackers to inject malicious scripts into web pages viewed by other users.

In the Linux kernel, the following vulnerability has been resolved: tipc: fix NULL pointer dereference in tipc_mon_reinit_self() syzbot reported: tipc: Node number set to 1055423674 Oops: general. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.

In the Linux kernel, the following vulnerability has been resolved: drm/nouveau: prime: fix ttm_bo_delayed_delete oops Fix an oops in ttm_bo_delayed_delete which results from dererencing a dangling. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.

In the Linux kernel, the following vulnerability has been resolved: sctp: add mutual exclusion in proc_sctp_do_udp_port() We must serialize calls to sctp_udp_sock_stop() and sctp_udp_sock_start() or. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. This NULL Pointer Dereference vulnerability could allow attackers to crash the application by dereferencing a null pointer.

In the Linux kernel, the following vulnerability has been resolved: atm: Fix NULL pointer dereference When MPOA_cache_impos_rcvd() receives the msg, it can trigger Null Pointer Dereference. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in hivedigital Canonical Attachments allows Reflected XSS.7. Rated high severity (CVSS 7.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

canonical/get-workflow-version-action is a GitHub composite action to get commit SHA that GitHub Actions reusable workflow was called with. Rated high severity (CVSS 8.2), this vulnerability is remotely exploitable. No vendor patch available.

In the Linux kernel, the following vulnerability has been resolved: nvmet: Fix crash when a namespace is disabled The namespace percpu counter protects pending I/O, and we can only safely diable the. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.

In the Linux kernel, the following vulnerability has been resolved: vxlan: check vxlan_vnigroup_init() return value vxlan_init() must check vxlan_vnigroup_init() success otherwise a crash happens. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. This NULL Pointer Dereference vulnerability could allow attackers to crash the application by dereferencing a null pointer.

In the Linux kernel, the following vulnerability has been resolved: USB: hub: Ignore non-compliant devices with too many configs or interfaces Robert Morris created a test program which can cause. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. This NULL Pointer Dereference vulnerability could allow attackers to crash the application by dereferencing a null pointer.

In the Linux kernel, the following vulnerability has been resolved: md/md-bitmap: Synchronize bitmap_get_stats() with bitmap lifetime After commit ec6bb299c7c3 ("md/md-bitmap: add 'sync_size' into. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Add a lock when accessing the buddy trim function When running YouTube videos and Steam games simultaneously, the. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.

In the Linux kernel, the following vulnerability has been resolved: mptcp: sysctl: sched: avoid using current->nsproxy Using the 'net' structure via 'current' is not recommended for different. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. This NULL Pointer Dereference vulnerability could allow attackers to crash the application by dereferencing a null pointer.

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix TCP options overflow. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. This NULL Pointer Dereference vulnerability could allow attackers to crash the application by dereferencing a null pointer.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Andon Ivanov OZ Canonical allows Reflected XSS.5. Rated high severity (CVSS 7.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.