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 (69574)
inadequate grant-v2 status frames array bounds check The v2 grant table interface separates grant attributes from grant status. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
grant table v2 status pages may remain accessible after de-allocation Guest get permitted access to certain Xen-owned pages of memory. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
IOMMU page mapping issues on x86 T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Both AMD and Intel allow ACPI tables. Rated medium severity (CVSS 6.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
IOMMU page mapping issues on x86 T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Both AMD and Intel allow ACPI tables. Rated medium severity (CVSS 6.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
OpenMage Magento LTS is an alternative to the Magento CE official releases. Rated high severity (CVSS 7.2), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
The useradm service 1.14.0 (in Northern.tech Mender Enterprise 2.7.x before 2.7.1) and 1.13.0 (in Northern.tech Mender Enterprise 2.6.x before 2.6.1) allows users to access the system with their JWT. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Cachet is an open source status page. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. This SQL Injection vulnerability could allow attackers to execute arbitrary SQL commands against the database.
IBM AIX 7.1, 7.2, and VIOS 3.1 could allow a non-privileged local user to exploit a vulnerability in the kernel to gain root privileges. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
IBM API Connect 5.0.0.0 through 5.0.8.11 could alllow a remote user to obtain sensitive information or conduct denial of serivce attacks due to open ports. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Microsoft Edge (Chromium-based) Information Disclosure Vulnerability. Rated medium severity (CVSS 6.3), this vulnerability is no authentication required, low attack complexity.
Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability. Rated medium severity (CVSS 6.0).
Data race in WebAudio in Google Chrome prior to 92.0.4515.159 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required. Public exploit code available and no vendor patch available.
Incorrect security UI in Navigation in Google Chrome on Android prior to 92.0.4515.131 allowed a remote attacker to spoof the contents of the Omnibox (URL bar) via a crafted HTML page. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Out of bounds read in Tab Strip in Google Chrome prior to 92.0.4515.131 allowed an attacker who convinced a user to install a malicious extension to perform an out of bounds memory read via a crafted. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
EmTec ZOC before 8.02.2 allows \e[201~ pastes, a different vulnerability than CVE-2021-32198. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
gdImageGd2Ptr in gd_gd2.c in the GD Graphics Library (aka LibGD) through 2.3.2 has a double free. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
A vulnerability in an API endpoint of Cisco Application Policy Infrastructure Controller (APIC) and Cisco Cloud Application Policy Infrastructure Controller (Cloud APIC) could allow an authenticated,. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Cscape (All Versions prior to 9.90 SP5) lacks proper validation of user-supplied data when parsing project files. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A user with permission to log on to the machine hosting the AXIS Device Manager client could under certain conditions extract a memory dump from the built-in Windows Task Manager application. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable. No vendor patch available.
Improper authorization in GitLab CE/EE affecting all versions since 13.3 allowed users to view and delete impersonation tokens that administrators created for their account. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Improper validation of commit author in GitLab CE/EE affecting all versions allowed an attacker to make several pages in a project impossible to view. Rated low severity (CVSS 2.7), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Improper authorization in the vulnerability report feature in GitLab EE affecting all versions since 13.1 allowed a reporter to access vulnerability data. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Under specialized conditions, GitLab may allow a user with an impersonation token to perform Git actions even if impersonation is disabled. Rated medium severity (CVSS 4.9), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Improper check in CheckboxGroup in com.vaadin:vaadin-checkbox-flow versions 1.2.0 prior to 2.0.0 (Vaadin 12.0.0 prior to 14.0.0), 2.0.0 prior to 3.0.0 (Vaadin 14.0.0 prior to 14.5.0), 3.0.0 through. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity.
An improper sanitization of input vulnerability in B. Rated high severity (CVSS 8.8), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
An Insufficient Verification of Data Authenticity vulnerability in B. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
A Cleartext Transmission of Sensitive Information vulnerability in B. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Affected versions of Atlassian Jira Server and Data Center allow remote attackers to redirect users to a malicious URL via a reverse tabnapping vulnerability in the Project Shortcuts feature. Rated medium severity (CVSS 4.8), this vulnerability is remotely exploitable, low attack complexity.
An issue was discovered in PrimeKey EJBCA before 7.6.0. Rated low severity (CVSS 2.3), this vulnerability is low attack complexity. No vendor patch available.
An issue was discovered in PrimeKey EJBCA before 7.6.0. Rated low severity (CVSS 2.7), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
An issue was discovered in PrimeKey EJBCA before 7.6.0. Rated low severity (CVSS 2.2), this vulnerability is remotely exploitable. No vendor patch available.
Istio is an open source platform for providing a uniform way to integrate microservices, manage traffic flow across microservices, enforce policies and aggregate telemetry data. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
An out-of-bounds read was addressed with improved bounds checking. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
Multiple issues were addressed by removing HDF5. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Description: 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 race condition was addressed with improved locking. Rated high severity (CVSS 7.0), this vulnerability is no authentication required. 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.
An access issue was addressed with improved access restrictions. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
A S/MIME issue existed in the handling of encrypted email. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A S/MIME issue existed in the handling of encrypted email. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A race condition was addressed with improved state handling. Rated high severity (CVSS 7.0), this vulnerability is no authentication required. No vendor patch available.
An access issue was addressed with improved access restrictions. Rated low severity (CVSS 3.3), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
This issue was addressed with improved handling of file metadata. Rated medium severity (CVSS 5.5), 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 high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
Description: A permissions 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 device configuration issue was addressed with an updated configuration. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
A race condition was addressed with improved locking. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. 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 path handling 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.
Description: A permissions issue was addressed with improved validation. Rated medium severity (CVSS 5.5), this vulnerability is 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 5.5), 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.
A lock screen issue allowed access to contacts on a locked device. Rated low severity (CVSS 2.4), 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 high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
An inconsistent user interface issue was addressed with improved state management. Rated medium severity (CVSS 4.6), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
An access issue was addressed with additional sandbox restrictions. 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.
Description: 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.
An issue in the handling of group membership was resolved with improved logic. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
An out-of-bounds read was addressed with improved bounds checking. 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 7.7), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
The issue was addressed with improved permissions logic. Rated medium severity (CVSS 4.6), 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 state management. Rated medium severity (CVSS 5.3), 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 low attack complexity. No vendor patch available.
A permissions issue was addressed with improved validation. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
A Lock Screen issue was addressed with improved state management. Rated low severity (CVSS 2.4), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A logic issue was addressed with improved state management. Rated low severity (CVSS 2.4), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
The issue was addressed with improved permissions logic. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
The issue was addressed with improved permissions logic. Rated medium severity (CVSS 5.5), 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 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 authentication issue was addressed with improved state management. Rated low severity (CVSS 3.3), 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 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.
A sync issue was addressed with improved state validation. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
An access issue was addressed with additional sandbox restrictions on third party applications. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
An issue existed in the specification for the resource timing API. 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 restrictions. 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 medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
An inherited permissions issue was addressed with additional restrictions. 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 medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
The issue was resolved with additional restrictions on CSS compositing. Rated medium severity (CVSS 4.7), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A logic issue was addressed with improved validation. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
An out-of-bounds read was addressed with improved bounds checking. Rated high severity (CVSS 7.1), 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 high severity (CVSS 7.1), 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 high severity (CVSS 7.1), 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 high severity (CVSS 7.1), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A lock screen issue allowed access to contacts on a locked device. Rated low severity (CVSS 3.3), this vulnerability is low attack complexity. No vendor patch available.