Information Disclosure
Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.
How It Works
Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security. This happens through multiple channels: verbose error messages that display stack traces revealing internal paths and frameworks, improperly secured debug endpoints left active in production, and misconfigured servers that expose directory listings or version control artifacts like .git folders. APIs often leak excessive data in responses—returning full user objects when only a name is needed, or revealing system internals through metadata fields.
Attackers exploit these exposures systematically. They probe for common sensitive files (.env, config.php, backup archives), trigger error conditions to extract framework details, and analyze response timing or content differences to enumerate valid usernames or resources. Even subtle variations—like "invalid password" versus "user not found"—enable account enumeration. Exposed configuration files frequently contain database credentials, API keys, or internal service URLs that unlock further attack vectors.
The attack flow typically starts with passive reconnaissance: examining HTTP headers, JavaScript bundles, and public endpoints for version information and architecture clues. Active probing follows—testing predictable paths, manipulating parameters to trigger exceptions, and comparing responses across similar requests to identify information leakage patterns.
Impact
- Credential compromise: Exposed configuration files, hardcoded secrets in source code, or API keys enable direct authentication bypass
- Attack surface mapping: Stack traces, framework versions, and internal paths help attackers craft targeted exploits for known vulnerabilities
- Data breach: Direct exposure of user data, payment information, or proprietary business logic through oversharing APIs or accessible backups
- Privilege escalation pathway: Internal URLs, service discovery information, and architecture details facilitate lateral movement and SSRF attacks
- Compliance violations: GDPR, PCI-DSS, and HIPAA penalties for exposing regulated data through preventable disclosures
Real-World Examples
A major Git repository exposure affected thousands of websites when .git folders remained accessible on production servers, allowing attackers to reconstruct entire source code histories including deleted commits containing credentials. Tools like GitDumper automated mass exploitation of this misconfiguration.
Cloud storage misconfigurations have repeatedly exposed sensitive data when companies left S3 buckets or Azure Blob containers publicly readable. One incident exposed 150 million voter records because verbose API error messages revealed the storage URL structure, and no authentication was required.
Framework debug modes left enabled in production have caused numerous breaches. Django's DEBUG=True setting exposed complete stack traces with database queries and environment variables, while Laravel's debug pages revealed encryption keys through the APP_KEY variable in environment dumps.
Mitigation
- Generic error pages: Return uniform error messages to users; log detailed exceptions server-side only
- Disable debug modes: Enforce production configurations that suppress stack traces, verbose logging, and debug endpoints through deployment automation
- Access control audits: Restrict or remove development artifacts (
.git, backup files,phpinfo()) and internal endpoints before deployment - Response minimization: API responses should return only necessary fields; implement allowlists rather than blocklists for data exposure
- Security headers: Deploy
X-Content-Type-Options, remove server version banners, and disable directory indexing - Timing consistency: Ensure authentication and validation responses take uniform time regardless of input validity
Recent CVEs (69570)
An issue existed in determining cache occupancy. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A memory initialization issue was addressed with improved memory handling. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A logic issue was addressed with improved state management. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A memory initialization issue was addressed with improved memory handling. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A logic issue was addressed with improved state management. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
An out-of-bounds read was addressed with improved input validation. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
The issue was addressed with improved UI handling. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
Processing a maliciously crafted audio file may disclose restricted memory. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A certificate validation issue was addressed. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable. No vendor patch available.
This issue was addressed with improved checks. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
An out-of-bounds read was addressed with improved input validation. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
This issue was addressed with improved entitlements. Rated medium severity (CVSS 4.4), this vulnerability is low attack complexity. No vendor patch available.
A logic issue was addressed with improved restrictions. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
A memory initialization issue was addressed with improved memory handling. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A logic issue was addressed with improved state management. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A validation issue was addressed with improved input sanitization. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
A permissions issue existed in DiskArbitration. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A permissions issue was addressed with improved validation. Rated low severity (CVSS 3.3), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A permissions issue was addressed with improved validation. Rated low severity (CVSS 3.3), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
An out-of-bounds read was addressed with improved bounds checking. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
An information disclosure issue was addressed by removing the vulnerable code. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
An out-of-bounds read was addressed with improved input validation. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
This issue was addressed with improved checks. Rated high severity (CVSS 7.1), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
This issue was addressed with improved checks. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
Multiple issues were addressed with improved logic. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
An access issue was addressed with improved access restrictions. Rated medium severity (CVSS 6.5), this vulnerability is low attack complexity. No vendor patch available.
This issue was addressed with improved checks. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A logic issue was addressed with improved validation. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A logic issue was addressed with improved validation. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
This issue was addressed with improved checks. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A logic issue was addressed with improved validation. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
This issue was addressed by enabling hardened runtime. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A local attacker may be able to view Now Playing information from the lock screen. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
Processing a maliciously crafted font may result in the disclosure of process memory. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Processing a maliciously crafted font may result in the disclosure of process memory. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
Processing a maliciously crafted image may lead to arbitrary code execution. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
An out-of-bounds read was addressed with improved input validation. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A malicious application may be able to overwrite arbitrary files. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
An out-of-bounds read was addressed with improved input validation. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
This issue was addressed with improved checks. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A logic issue was addressed with improved restrictions. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A logic issue was addressed with improved state management. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
This issue was addressed with improved checks. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
An information disclosure issue was addressed with improved state management. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
An information disclosure issue was addressed with improved state management. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
A path handling issue was addressed with improved validation. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Another race in XENMAPSPACE_grant_table handling Guests are permitted access to certain Xen-owned pages of memory. Rated high severity (CVSS 7.8). No vendor patch available.
Adobe Creative Cloud Desktop 3.5 (and earlier) is affected by an uncontrolled search path vulnerability that could result in elevation of privileges. Rated high severity (CVSS 7.3), this vulnerability is low attack complexity. No vendor patch available.
Possible out of bounds read due to incorrect validation of incoming buffer length in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT,. Rated high severity (CVSS 7.1), this vulnerability is low attack complexity. No vendor patch available.
Lack of strict validation of bootmode can lead to information disclosure in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT,. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
Buffer over read could occur due to incorrect check of buffer size while flashing emmc devices in Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile,. Rated medium severity (CVSS 6.1), this vulnerability is no authentication required, low attack complexity. This Out-of-bounds Read vulnerability could allow attackers to read data from memory outside the intended buffer boundaries.
Incorrect pointer argument passed to trusted application TA could result in un-intended memory operations in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Industrial IOT. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
Integer underflow can occur due to improper handling of incoming RTCP packets in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT,. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Integer underflow can occur when the RTCP length is lesser than than the actual blocks present in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Child process can leak information from parent process due to numeric pids are getting compared and these pid can be reused in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.
Affected versions of Atlassian Jira Server and Data Center allow anonymous remote attackers to view users' emails via an Information Disclosure vulnerability in the /rest/api/2/search endpoint. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Affected versions of Atlassian Jira Server and Data Center allow authenticated remote attackers to enumerate the keys of private Jira projects via an Information Disclosure vulnerability in the. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity.
Nextcloud server is an open source, self hosted personal cloud. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Nextcloud server is an open source, self hosted personal cloud. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
Nextcloud Richdocuments is an open source collaborative office suite. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Nextcloud Text is an open source plaintext editing application which ships with the nextcloud server. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Sonatype Nexus Repository 3.x through 3.33.1-01 is vulnerable to an HTTP header injection. Rated high severity (CVSS 8.2), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
The public share controller in the ownCloud server before version 10.8.0 allows a remote attacker to see the internal path and the username of a public share by including invalid characters in the. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A crafted NTFS image can cause out-of-bounds reads in ntfs_attr_find and ntfs_external_attr_find in NTFS-3G < 2021.8.22. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
A crafted NTFS image with an unallocated bitmap can lead to a endless recursive function call chain (starting from ntfs_attr_pwrite), causing stack consumption in NTFS-3G < 2021.8.22. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
A crafted NTFS image can trigger an out-of-bounds read, caused by an invalid attribute in ntfs_attr_find_in_attrdef, in NTFS-3G < 2021.8.22. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
A crafted NTFS image can cause an out-of-bounds read in ntfs_runlists_merge_i in NTFS-3G < 2021.8.22. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
A crafted NTFS image can cause an out-of-bounds read in ntfs_ie_lookup in NTFS-3G < 2021.8.22. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
A flaw was discovered in bolt-server and ace where running a task with sensitive parameters results in those sensitive parameters being logged when they should not be. Rated medium severity (CVSS 4.9), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
In Eigen NLP 3.10.1, a lack of access control on the /auth/v1/user/{user-guid}/ user edition endpoint could permit any logged-in user to increase their own permissions via a user_permissions array in. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
In Eigen NLP 3.10.1, a lack of access control on the /auth/v1/sso/config/ SSO configuration endpoint allows any logged-in user (guest, standard, or admin) to view and modify information. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Apache Dubbo supports various rules to support configuration override or traffic routing (called routing in Dubbo). Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
The Bluetooth Classic Audio implementation on Actions ATS2815 and ATS2819 devices does not properly handle a connection attempt from a host with the same BDAddress as the current connected BT host,. Rated medium severity (CVSS 6.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
The Bluetooth Classic implementation on Zhuhai Jieli AC690X devices does not properly handle the reception of an oversized LMP packet greater than 17 bytes during the LMP auto rate procedure,. Rated medium severity (CVSS 6.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
The Bluetooth Classic implementation on Zhuhai Jieli AC690X and AC692X devices does not properly handle an out-of-order LMP Setup procedure that is followed by a malformed LMP packet, allowing. Rated medium severity (CVSS 5.7), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
The Bluetooth Classic implementation on Bluetrum AB5301A devices with unknown firmware versions does not properly handle the reception of oversized DM1 LMP packets while no other BT connections are. Rated medium severity (CVSS 6.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
The Bluetooth Classic implementation in the Zhuhai Jieli AC6366C BT SDK through 0.9.1 does not properly handle the reception of truncated LMP_SCO_Link_Request packets while no other BT connections. Rated medium severity (CVSS 6.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
ulfius_uri_logger in Ulfius HTTP Framework before 2.7.4 omits con_info initialization and a con_info->request NULL check for certain malformed HTTP requests. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
Telegram Web K Alpha before 0.7.2 mishandles the characters in a document extension. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
The ElGamal implementation in Crypto++ through 8.5 allows plaintext recovery because, during interaction between two cryptographic libraries, a certain dangerous combination of the prime defined by. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. Public exploit code available and no vendor patch available.
The ElGamal implementation in Botan through 2.18.1, as used in Thunderbird and other products, allows plaintext recovery because, during interaction between two cryptographic libraries, a certain. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. Public exploit code available.
The ElGamal implementation in Libgcrypt before 1.9.4 allows plaintext recovery because, during interaction between two cryptographic libraries, a certain dangerous combination of the prime defined by. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. Public exploit code available and no vendor patch available.
An improper access control vulnerability in FortiManager versions 6.4.0 to 6.4.3 may allow an authenticated attacker with a restricted user profile to access the SD-WAN Orchestrator panel via. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Generated Support Bundles contains private S/MIME and PGP keys if containing folder is not hidden. Rated medium severity (CVSS 4.9), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Malicious attacker is able to find out valid user logins by using the "lost password" feature. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
It's possible to create an email which can be stuck while being processed by PostMaster filters, causing DoS. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
objection.js is vulnerable to Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution'). Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
A security issue was discovered in Kubernetes where a user may be able to redirect pod traffic to private networks on a Node. Rated medium severity (CVSS 4.8), this vulnerability is remotely exploitable, low attack complexity.
WeeChat before 3.2.1 allows remote attackers to cause a denial of service (crash) via a crafted WebSocket frame that trigger an out-of-bounds read in plugins/relay/relay-websocket.c in the Relay. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Chromium: CVE-2021-30620 Insufficient policy enforcement in Blink. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.