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 (69244)
The kernel module has an out-of-bounds read vulnerability.Successful exploitation of this vulnerability may cause memory overwriting. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
The kernel module has an out-of-bounds read vulnerability.Successful exploitation of this vulnerability may cause memory overwriting. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
The storage maintenance and debugging module has an array out-of-bounds read vulnerability.Successful exploitation of this vulnerability will cause incorrect statistics of this module. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
The security module has configuration defects.Successful exploitation of this vulnerability may affect system availability. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
The HW_KEYMASTER module has a vulnerability of not verifying the data read.Successful exploitation of this vulnerability may cause malicious construction of data, which results in out-of-bounds. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
The HW_KEYMASTER module has a vulnerability of not verifying the data read.Successful exploitation of this vulnerability may cause malicious construction of data, which results in out-of-bounds. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
The kernel server has a vulnerability of not verifying the length of the data transferred in the user space.Successful exploitation of this vulnerability may cause out-of-bounds read in the kernel,. Rated high severity (CVSS 7.1), this vulnerability is low attack complexity. No vendor patch available.
A single malformed IEEE 802.15.4 (Zigbee) frame makes the TRÅDFRI gateway unresponsive, such that connected lighting cannot be controlled with the IKEA Home Smart app and TRÅDFRI remote control. Rated medium severity (CVSS 6.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
An attacker sending a single malformed IEEE 802.15.4 (Zigbee) frame makes the TRÅDFRI bulb blink, and if they replay (i.e. Rated high severity (CVSS 8.1), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
The HISP module has a vulnerability of not verifying the data transferred in the kernel space.Successful exploitation of this vulnerability will cause out-of-bounds read, which affects data. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
The facial recognition module has a vulnerability in input validation.Successful exploitation of this vulnerability may affect data confidentiality. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
The HIPP module has a vulnerability of not verifying the data transferred in the kernel space.Successful exploitation of this vulnerability will cause out-of-bounds read, which affects data. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
The HwAirlink module has an out-of-bounds read vulnerability.Successful exploitation of this vulnerability may cause information leakage. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
The HwAirlink module has a heap overflow vulnerability.Successful exploitation of this vulnerability may cause out-of-bounds writes, resulting in modification of sensitive data. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
OpenHarmony-v3.1.2 and prior versions, 3.0.6 and prior versions have an Out-of-bound memory read and write vulnerability in /dev/mmz_userdev device driver. Rated medium severity (CVSS 4.4), this vulnerability is low attack complexity. No vendor patch available.
Requests forwarded by ReverseProxy include the raw query parameters from the inbound request, including unparsable parameters rejected by net/http. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
Zoom Client for Meetings for macOS (Standard and for IT Admin) starting with 5.10.6 and prior to 5.12.0 contains a debugging port misconfiguration. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
Prototype pollution vulnerability in karma-runner grunt-karma 4.0.1 via the key variable in grunt-karma.js. 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 vulnerability was found in SourceCodester Human Resource Management System 1.0 and classified as critical.php of the component Admin Panel. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
In affected versions of Octopus Server it is possible to use the Git Connectivity test function on the VCS project to initiate an SMB request resulting in the potential for an NTLM relay attack. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Grafana is an open source observability and data visualization platform. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Exposure of Sensitive Information vulnerability could allow attackers to access sensitive data that should not be disclosed.
Grafana is an open source observability and data visualization platform. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Exposure of Sensitive Information vulnerability could allow attackers to access sensitive data that should not be disclosed.
Origin Validation Error in GitHub repository ikus060/rdiffweb prior to 2.5.0a5. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
D-Link COVR 1200,1202,1203 v1.08 was discovered to have a predictable seed in a Pseudo-Random Number Generator. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.
Bentley MicroStation and MicroStation-based applications may be affected by out-of-bounds and stack overflow issues when opening crafted XMT files. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
Bentley MicroStation and MicroStation-based applications may be affected by out-of-bounds read issues when opening crafted FBX files. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
Bentley MicroStation and MicroStation-based applications may be affected by out-of-bounds read and stack overflow issues when opening crafted SKP files. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
FreeRDP is a free remote desktop protocol library and clients. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
FreeRDP is a free remote desktop protocol library and clients. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
HashiCorp Vault and Vault Enterprise’s TLS certificate auth method did not initially load the optionally configured CRL issued by the role's CA into memory on startup, resulting in the revocation. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
An issue was discovered in Zimbra Collaboration (ZCS) 9.0. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Prototype pollution vulnerability in function parseQuery in parseQuery.js in webpack loader-utils via the name variable in parseQuery.js. 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.
Dell GeoDrive, versions 2.1 - 2.2, contains an information disclosure vulnerability in GUI. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
Dell GeoDrive, Versions 2.1 - 2.2, contains an information disclosure vulnerability. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
Dell BIOS contains an improper input validation vulnerability. Rated medium severity (CVSS 4.4), this vulnerability is low attack complexity. No vendor patch available.
Dell BIOS contains an improper input validation vulnerability. Rated medium severity (CVSS 4.4), this vulnerability is low attack complexity. No vendor patch available.
Dell EMC XtremIO versions prior to X2 6.4.0-22 contain a bruteforce vulnerability. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
WiJungle NGFW Version U250 was discovered to be vulnerable to No Rate Limit attack, allowing the attacker to brute force the admin password leading to Account Take Over. 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.
Prototype pollution vulnerability in function enable in mockery.js in mfncooper mockery commit 822f0566fd6d72af8c943ae5ca2aa92e516aa2cf via the key variable in mockery.js. 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.
In affected versions of Octopus Server it was identified that when a sensitive value is a substring of another value, sensitive value masking will only partially work. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Prototype pollution vulnerability in tschaub gh-pages 3.1.0 via the partial variable in util.js. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Multiple Improper Access Control was discovered in Nokia AirFrame BMC Web GUI < R18 Firmware v4.13.00. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.
Prototype pollution vulnerability in function resolveShims in resolve-shims.js in thlorenz browserify-shim 3.8.15 via the k variable in resolve-shims.js. 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.
The d8s-networking package for Python, as distributed on PyPI, included a potential code-execution backdoor inserted by a third party. 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.
The d8s-file-system package for Python, as distributed on PyPI, included a potential code-execution backdoor inserted by a third party. 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.
SAP Customer Data Cloud (Gigya mobile app for Android) - version 7.4, uses insecure random number generator program which makes it easy for the attacker to predict future random numbers. Rated medium severity (CVSS 5.2), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
SAP Customer Data Cloud (Gigya mobile app for Android) - version 7.4, uses encryption method which lacks proper diffusion and does not hide the patterns well. Rated medium severity (CVSS 5.2), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
LibreOffice supports Office URI Schemes to enable browser integration of LibreOffice with MS SharePoint server. Rated medium severity (CVSS 6.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
SAP Manufacturing Execution - versions 15.1, 15.2, 15.3, allows an attacker to exploit insufficient validation of a file path request parameter. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Under certain conditions, BOE AdminTools/ BOE SDK allows an attacker to access information which would otherwise be restricted. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Under certain conditions an authenticated attacker can get access to OS credentials. Rated high severity (CVSS 7.6), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
The Triangle Microworks IEC 61850 Library (Any client or server using the C language library with a version number of 11.2.0 or earlier and any client or server using the C++, C#, or Java language. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Under certain conditions, the application SAP BusinessObjects Business Intelligence Platform (Version Management System) exposes sensitive information to an actor over the network with high. Rated medium severity (CVSS 4.9), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
VMware Aria Operations contains an arbitrary file read vulnerability. Rated medium severity (CVSS 4.9), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
In pickStartSeq of AAVCAssembler.cpp, there is a possible out of bounds read due to a missing bounds check. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, 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.
In start of Threads.cpp, there is a possible way to record audio during a phone call due to a logic error in the code. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.
In fdt_next_tag of fdt.c, there is a possible out of bounds read due to an incorrect bounds check. Rated medium severity (CVSS 6.7), this vulnerability is low attack complexity. This Out-of-bounds Read vulnerability could allow attackers to read data from memory outside the intended buffer boundaries.
In avrc_ctrl_pars_vendor_rsp of avrc_pars_ct.cc, there is a possible out of bounds read due to an integer overflow. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, 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.
In getInputMethodWindowVisibleHeight of InputMethodManagerService.java, there is a possible way to determine when another app is showing an IME due to a missing permission check. Rated medium severity (CVSS 5.0), this vulnerability is low attack complexity. This Missing Authorization vulnerability could allow attackers to access resources or perform actions without proper authorization checks.
In queryInternal of CallLogProvider.java, there is a possible access to voicemail information due to SQL injection. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.
Visual Studio Code Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
Microsoft Office Information Disclosure Vulnerability. Rated low severity (CVSS 3.3), this vulnerability is low attack complexity.
Visual Studio Code Information Disclosure Vulnerability. Rated high severity (CVSS 7.4), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Microsoft Edge (Chromium-based) Spoofing Vulnerability. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required.
Windows COM+ Event System Service Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. This Access of Resource Using Incompatible Type (Type Confusion) vulnerability could allow attackers to execute arbitrary code by exploiting type confusion in the application.
Windows Graphics Component Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
Win32k Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
Web Account Manager Information Disclosure Vulnerability. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Windows Server Service Elevation of Privilege Vulnerability. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity.
Windows Security Support Provider Interface Information Disclosure Vulnerability. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.
Active Directory Domain Services Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.1), this vulnerability is remotely exploitable.
Windows Kernel Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
Windows Kernel Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
Windows Kernel Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
Windows Workstation Service Elevation of Privilege Vulnerability. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity.
Windows Server Remotely Accessible Registry Keys Information Disclosure Vulnerability. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity.
Windows USB Serial Driver Information Disclosure Vulnerability. Rated medium severity (CVSS 4.3), this vulnerability is low attack complexity.
Windows ALPC Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.0).
Windows Storage Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.0).
Windows DHCP Client Information Disclosure Vulnerability. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.
Windows Distributed File System (DFS) Information Disclosure Vulnerability. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.
Windows Kernel Elevation of Privilege Vulnerability. Rated low severity (CVSS 3.3), this vulnerability is low attack complexity.
Connected User Experiences and Telemetry Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.0).
StorSimple 8000 Series Elevation of Privilege Vulnerability. Rated medium severity (CVSS 6.8), this vulnerability is no authentication required, low attack complexity.
Windows Local Security Authority (LSA) Elevation of Privilege Vulnerability. Rated high severity (CVSS 8.8), this vulnerability is low attack complexity.
Windows Resilient File System Elevation of Privilege. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
Microsoft Office Spoofing Vulnerability. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Windows Group Policy Preference Client Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
Windows Graphics Component Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
Windows Kernel Memory Information Disclosure Vulnerability. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.