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 (69309)
Windows Kernel Information Disclosure Vulnerability. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.
Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
Microsoft Office Information Disclosure Vulnerability. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity.
Microsoft File Server Shadow Copy Agent Service (RVSS) Elevation of Privilege Vulnerability. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable.
Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.0).
Windows Desired State Configuration (DSC) Information Disclosure Vulnerability. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.
Windows Installer Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
Windows Media Center Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
Windows Container Manager Service Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
Windows Container Isolation FS Filter Driver Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
Open Management Infrastructure (OMI) Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
Adobe Illustrator versions 26.0.2 (and earlier) and 25.4.5 (and earlier) are affected by an out-of-bounds read vulnerability that could lead to disclosure of sensitive memory. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity.
Adobe Illustrator versions 26.0.2 (and earlier) and 25.4.5 (and earlier) are affected by an out-of-bounds read vulnerability that could lead to disclosure of sensitive memory. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity.
Adobe Illustrator versions 26.0.2 (and earlier) and 25.4.5 (and earlier) are affected by an out-of-bounds read vulnerability that could lead to disclosure of sensitive memory. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity.
Adobe Illustrator versions 26.0.2 (and earlier) and 25.4.5 (and earlier) are affected by an out-of-bounds read vulnerability that could lead to disclosure of sensitive memory. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity.
Zooms On-Premise Meeting Connector MMR before version 4.8.113.20220526 fails to properly check the permissions of a Zoom meeting attendee. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Observable behavioral in power management throttling for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via network access. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Incomplete cleanup in specific special register write operations for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.
Adobe Bridge version 12.0.1 (and earlier versions) is affected by an out-of-bounds read vulnerability that could lead to disclosure of sensitive memory. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity.
Local privilege vulnerability in Yandex Browser for Windows prior to 22.3.3.801 allows a local, low privileged, attacker to execute arbitary code with the SYSTEM privileges through manipulating. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
Local privilege vulnerability in Yandex Browser for Windows prior to 22.3.3.684 allows a local, low privileged, attacker to execute arbitary code with the SYSTEM privileges through manipulating. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
A potential vulnerability in some AMD processors using frequency scaling may allow an authenticated attacker to execute a timing attack to potentially enable information disclosure. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
A vulnerability in Metasys ADS/ADX/OAS 10 versions prior to 10.1.5 and Metasys ADS/ADX/OAS 11 versions prior to 11.0.2 allows unverified password change. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Incomplete cleanup in specific special register read operations for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.
Incomplete cleanup of microarchitectural fill buffers on some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.
Incomplete cleanup of multi-core shared buffers for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.
An issue was discovered in AgileBits 1Password, involving the method various 1Password apps and integrations used to create connections to the 1Password service. Rated medium severity (CVSS 4.8), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Vulnerabilities in the Drive Composer allow a low privileged attacker to create and write to a file anywhere on the file system as SYSTEM with arbitrary content as long as the file does not already. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
Vulnerabilities in the Drive Composer allow a low privileged attacker to create and write to a file anywhere on the file system as SYSTEM with arbitrary content as long as the file does not already. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
Vulnerabilities in the Drive Composer allow a low privileged attacker to create and write to a file anywhere on the file system as SYSTEM with arbitrary content as long as the file does not already. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
Vulnerabilities in the Drive Composer allow a low privileged attacker to create and write to a file anywhere on the file system as SYSTEM with arbitrary content as long as the file does not already. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
NestJS Proxy is a NestJS module to decorate and proxy calls. 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.
NestJS Proxy is a NestJS module to decorate and proxy calls. 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.
Rundeck is an open source automation service with a web console, command line tools and a WebAPI. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A vulnerability in the web-based management interface of Cisco Identity Services Engine (ISE) could allow an authenticated, remote attacker to obtain sensitive information from an affected device. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
A vulnerability in Cisco Unified IP Phones could allow an unauthenticated, remote attacker to impersonate another user's phone if the Cisco Unified Communications Manager (CUCM) is in secure mode. Rated high severity (CVSS 7.4), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
A vulnerability in the web-based management interface of Cisco AppDynamics Controller Software could allow an unauthenticated, remote attacker to access a configuration file and the login page for an. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A vulnerability in the web management interface of Cisco Secure Email and Web Manager, formerly Cisco Security Management Appliance (SMA), and Cisco Email Security Appliance (ESA) could allow an. Rated high severity (CVSS 7.7), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
In Splunk Enterprise and Universal Forwarder versions before 9.0, the Splunk command-line interface (CLI) did not validate TLS certificates while connecting to a remote Splunk platform instance by. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
In universal forwarder versions before 9.0, management services are available remotely by default. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Splunk Enterprise peers in Splunk Enterprise versions before 9.0 and Splunk Cloud Platform versions before 8.2.2203 did not validate the TLS certificates during Splunk-to-Splunk communications by. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Splunk Enterprise peers in Splunk Enterprise versions before 9.0 and Splunk Cloud Platform versions before 8.2.2203 did not validate the TLS certificates during Splunk-to-Splunk communications by. Rated high severity (CVSS 7.2), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
The httplib and urllib Python libraries that Splunk shipped with Splunk Enterprise did not validate certificates using the certificate authority (CA) certificate stores by default in Splunk. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A lack of password masking in Devolutions Remote Desktop Manager allows physically proximate attackers to observe sensitive data. Rated medium severity (CVSS 4.6), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
In hme_add_new_node_to_a_sorted_array of hme_utils.c, there is a possible out of bounds read due to a heap buffer overflow. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
In parseRecursively of cppbor_parse.cpp, there is a possible out of bounds read due to an incorrect bounds check. Rated medium severity (CVSS 4.4), this vulnerability is low attack complexity. No vendor patch available.
In setPackageOrComponentEnabled of NotificationManagerService.java, there is a missing permission check. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
In isFileUri of FileUtil.java, there is a possible way to bypass the check for a file:// scheme due to improper input validation. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
In ih264_resi_trans_quant_4x4_sse42 of ih264_resi_trans_quant_sse42.c, there is a possible out of bounds read due to a heap buffer overflow. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
In getAppSize of InstalldNativeService.cpp, there is a possible out of bounds read due to a missing bounds check. Rated medium severity (CVSS 6.7), this vulnerability is low attack complexity. No vendor patch available.
In updateApState of SoftApManager.java, there is a possible leak of hotspot state due to a missing permission check. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
In llcp_dlc_proc_connect_pdu of llcp_dlc.cc, there is a possible out of bounds read due to a missing bounds check. Rated medium severity (CVSS 4.4), this vulnerability is low attack complexity. No vendor patch available.
In gallery3d and photos, there is a possible permission bypass due to a confused deputy. Rated medium severity (CVSS 5.0), this vulnerability is low attack complexity. No vendor patch available.
Product: AndroidVersions: Android kernelAndroid ID: A-209324757References: N/A. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Product: AndroidVersions: Android kernelAndroid ID: A-208744915References: N/A. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Product: AndroidVersions: Android kernelAndroid ID: A-207254598References: N/A. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Product: AndroidVersions: Android kernelAndroid ID: A-209153114References: N/A. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
In handle_ramdump of pixel_loader.c, there is a possible way to create a ramdump of non-secure memory due to a missing permission check. Rated medium severity (CVSS 4.4), this vulnerability is low attack complexity. No vendor patch available.
Product: AndroidVersions: Android kernelAndroid ID: A-210936609References: N/A. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Product: AndroidVersions: Android kernelAndroid ID: A-211683760References: N/A. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Product: AndroidVersions: Android kernelAndroid ID: A-209906686References: N/A. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
In auth_store of sjtag-driver.c, there is a possible read of uninitialized memory due to a missing bounds check. Rated medium severity (CVSS 4.4), this vulnerability is low attack complexity. No vendor patch available.
Product: AndroidVersions: Android kernelAndroid ID: A-209252491References: N/A. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
In exynos_secEnv_init of mach-gs101.c, there is a possible out of bounds read due to an incorrect bounds check. Rated medium severity (CVSS 4.4), this vulnerability is low attack complexity. No vendor patch available.
Product: AndroidVersions: Android kernelAndroid ID: A-207116951References: N/A. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
In onbind of ShannonRcsService.java, there is a possible access to protect data due to a missing permission check. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
Product: AndroidVersions: Android kernelAndroid ID: A-215565667References: N/A. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Product: AndroidVersions: Android kernelAndroid ID: A-209421931References: N/A. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Product: AndroidVersions: Android kernelAndroid ID: A-211162353References: N/A. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Product: AndroidVersions: Android kernelAndroid ID: A-210594998References: N/A. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Product: AndroidVersions: Android kernelAndroid ID: A-204956204References: N/A. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
In asn1_parse of asn1.c, there is a possible out of bounds read due to an incorrect bounds check. Rated medium severity (CVSS 4.4), this vulnerability is low attack complexity. No vendor patch available.
Product: AndroidVersions: Android kernelAndroid ID: A-204891956References: N/A. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
In asn1_p256_int of crypto/asn1.c, there is a possible out of bounds read due to an incorrect bounds check. Rated medium severity (CVSS 4.4), this vulnerability is low attack complexity. No vendor patch available.
Product: AndroidVersions: Android kernelAndroid ID: A-210083655References: N/A. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
In asn1_ec_pkey_parse of acropora/crypto/asn1_common.c, there is a possible out of bounds read due to an incorrect bounds check. Rated medium severity (CVSS 4.4), this vulnerability is low attack complexity. No vendor patch available.
Product: AndroidVersions: Android kernelAndroid ID: A-210712565References: N/A. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Product: AndroidVersions: Android kernelAndroid ID: A-211685939References: N/A. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
In uploadFile of FileUploadServiceImpl.java, there is a possible incorrect file access due to a confused deputy. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
In lg_probe and related functions of hid-lg.c and other USB HID files, there is a possible out of bounds read due to improper input validation. Rated medium severity (CVSS 4.6), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
In nci_proc_rf_management_ntf of nci_hrcv.cc, 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. No vendor patch available.
In phNciNfc_RecvMfResp of phNxpExtns_MifareStd.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. No vendor patch available.
EdgeX Foundry is an open source project for building a common open framework for Internet of Things edge computing. Rated medium severity (CVSS 4.4), this vulnerability is low attack complexity. This Exposure of Sensitive Information vulnerability could allow attackers to access sensitive data that should not be disclosed.
Discourse is an open-source discussion platform. Rated medium severity (CVSS 5.3), 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.
TYPO3 is an open source web content management system. Rated high severity (CVSS 7.2), this vulnerability is remotely exploitable, low attack complexity.
TYPO3 is an open source web content management system. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity.
TYPO3 is an open source web content management system. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. This Exposure of Sensitive Information vulnerability could allow attackers to access sensitive data that should not be disclosed.
Jupyter Server provides the backend (i.e. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
SAP PowerDesigner Proxy - version 16.7, allows an attacker with low privileges and has local access, with the ability to work around system’s root disk access restrictions to Write/Create a program. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
An issue was discovered in Couchbase Server before 6.6.5 and 7.x before 7.0.4. Rated medium severity (CVSS 4.9), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.