Medium · CVSS 6.3CVE-2026-125871

MISP sourcecache module SSRF allows fetching arbitrary internal URLs via attribute enrichmentCVE-2026-125871

Answer in brief

CVE-2026-125871 records a Medium severity (CVSS 6.3) vulnerability in MISP sourcecache module SSRF allows fetching arbitrary internal URLs via attribute enrichment. The current sources do not mark it as known exploited. The current feed maps MISP/misp-modules (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Nov 10, 2026Updated Nov 10, 2026Source checked Nov 10, 2026First seen by HOL Nov 10, 2026Material review Nov 10, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 6.3
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 6.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps MISP/misp-modules (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
MISP/misp-modulesgeneric	>=0 <3.0.13	3.0.13

Recommended response

Check inventory. Check lockfiles and deployed manifests for MISP/misp-modules.
Review the reported fix. Source-reported solution: The fix introduces a URL validation gate (is_safe_url) that is invoked before any archiving request is made. The function restricts the scheme to http or https, resolves the hostname via DNS, and verifies that every resolved IP address is globally routable (i.e., not loopback, private, link-local, or otherwise non-global). If any check fails, the module returns an error and the fetch is never performed, preventing the server from being directed to internal or non-HTTP targets.

Evidence timeline and material changes

Published upstream
Nov 10, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Nov 10, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Nov 10, 2026

Sources and claim methodology

GitHub security advisorygithub.com

Upstream source description

The sourcecache expansion module in MISP Modules (misp-modules) contains a Server-Side Request Forgery (SSRF) vulnerability. When a user with permission to create or modify attributes of type 'link' or 'url' submits an attribute value, the module passes the URL directly to its internal archiving function without any validation of the target address. An attacker can therefore craft a URL pointing to loopback addresses (e.g., 127.0.0.1), private network ranges, link-local addresses, or cloud metadata endpoints (e.g., 169.254.169.254). The MISP server will issue an HTTP request to that target and store the response body in the event, effectively exfiltrating data from internal services to the attacker through the MISP interface. Non-HTTP schemes such as file:// are also accepted, potentially allowing local file disclosure. The vulnerability requires an authenticated MISP user with the ability to create or edit attributes of the affected types. The security impact is information disclosure from internal services reachable by the MISP server, including sensitive data such as cloud credentials, internal application data, or local files.

Quoted source text, attributed separately from HOL analysis.

Package

Affected range

Fixed version

MISP/misp-modulesgeneric

>=0 <3.0.13

3.0.13

Recommended response

Check inventory. Check lockfiles and deployed manifests for MISP/misp-modules.

Review the reported fix. Source-reported solution: The fix introduces a URL validation gate (is_safe_url) that is invoked before any archiving request is made. The function restricts the scheme to http or https, resolves the hostname via DNS, and verifies that every resolved IP address is globally routable (i.e., not loopback, private, link-local, or otherwise non-global). If any check fails, the module returns an error and the fetch is never performed, preventing the server from being directed to internal or non-HTTP targets.

Sources and claim methodology

Upstream source description

Quoted source text, attributed separately from HOL analysis.