CVE-2025-61634

HTML rest endpoint needs PoolCounter and proper parser cache check

Published Feb 2, 2026 CVSS 4.0 · 0 Low EPSS < 1% KEV · Not listed
Description
Vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/Rest/Handler/PageHTMLHandler.Php.

This issue affects MediaWiki: from * before 1.39.14, 1.43.4, 1.44.1.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DSA Debian DSA DSA-6085-1 mediawiki security update
References
History
Type Values Removed Values Added
Weaknesses CWE-22
CPEs cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 3.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N'}

Type Values Removed Values Added
First Time appeared Mediawiki
Mediawiki mediawiki
Wikimedia
Wikimedia mediawiki
Vendors & Products Mediawiki
Mediawiki mediawiki
Wikimedia
Wikimedia mediawiki
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/Rest/Handler/PageHTMLHandler.Php. This issue affects MediaWiki: from * before 1.39.14, 1.43.4, 1.44.1.
Title HTML rest endpoint needs PoolCounter and proper parser cache check
References
Metrics cvssV4_0

{'score': 0, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N/RE:M/U:Green'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
wikimedia-foundation
Published
Updated
Feb 3, 2026, 9:15 PM
Reserved
Sep 29, 2025, 1:18 PM
Status
Analyzed
Published
Feb 3, 2026, 12:16 AM
Modified
Jun 17, 2026, 9:50 AM