MISP server settings lookup exposes configuration secrets
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Information disclosure, Security bypass
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-200 and CWE-285.
Summary
MISP versions before 2.5.48 expose sensitive configuration through the server settings lookup, tracked as CWE-200. When a branch name such as Security or Plugin is resolved instead of a single setting, the lookup returns the whole sub-tree without redaction. An authenticated user with low privileges can retrieve secrets such as the security salt, Redis passwords and plugin API keys.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
MISP contains a vulnerability in its server settings lookup mechanism that allows an authenticated user to retrieve sensitive configuration data that should have been redacted. The settings lookup function resolves a dotted setting name to a node in the configuration tree. When a branch name (such as Security, MISP, or Plugin) is supplied instead of a specific leaf setting, the function returns the entire sub-tree. Because a branch node does not carry a redaction flag, the redaction check in the settings retrieval endpoint is bypassed, and the full branch contents are returned to the caller. This exposes sensitive values including the security salt, Redis connection passwords, and plugin API keys. A second endpoint that edits server settings similarly reads the entire configuration store when a branch name is resolved, returning all settings to the caller. The impact is disclosure of sensitive server configuration secrets to any user who can access the server settings endpoints. Affected versions: <2.5.48.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
Upgrade MISP to version 2.5.48, which fixes this issue.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
- Fix · CNA MISP (MISP) Fixed in 2.5.48
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
MISP 2.5.48
6 records Highest priority Priority LOW 6 LOW
Other records, highest priority first
- TI-2026-76314 Missing authorization in MISP proposal visibility exposes shadow attributesPriority LOW 31
- TI-2026-76320 MISP leaks redacted module settings and lets users edit CLI-only onesPriority LOW 24
- TI-2026-76315 Non-exportable tags leak to remote MISP instances during event syncPriority LOW 24
Timeline
- 2026-10-19 Threatist record created from CVE-2026-112188
- 2026-10-19 Alias added: GHSA-mp6x-6c2r-xcxv
- 2026-10-21 Priority changed: MEDIUM → LOW
- 2026-10-28 CISA SSVC decision points changed
References
Patch 1
More MISP vulnerabilities
- TI-2025-41517 In MISP before 2.5.28, app/View/Elements/Workflows/executionPath.ctp allows XSS in the workflow execution path. CVSS 3.1CRITICAL 9.0
- TI-2026-65744 MISP TOTP Code Replay Allows Duplicate Authentication Within Validity Period CVSS 4.0CRITICAL 9.3
- TI-2026-54145 Path Traversal in MISP Object Template Resolution During STIX Import and Export in misp-stix library CVSS 4.0HIGH 8.8
- TI-2020-10250 MISP MISP-maltego 1.4.4 incorrectly shares a MISP connection across users in a remote-transform use case. CVSS 3.1CRITICAL 9.8
- TI-2026-59159 MISP Unauthenticated Mail Endpoints Allow Unbounded Storage Consumption and Request Flooding CVSS 4.0HIGH 8.7
- TI-2026-58541 MISP LDAP and LinOTP Authentication Bypass via Empty or Invalid Credentials CVSS 4.0CRITICAL 9.5
Sources
- CVE-2026-112188 · CVE Program
- CVE-2026-112188 · NVD
- FIRST EPSS
- GHSA-mp6x-6c2r-xcxv · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences