What’s Vulnerable › Vulnerabilities

CVE-2025-62666: DoS vector through the cirrusbuilddoc query API

• Severity: medium (CVSS 6.9 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-10-18 · updated 2026-10-09
• Weakness: CWE-770

Description

Allocation of Resources Without Limits or Throttling vulnerability in The Wikimedia Foundation Mediawiki - CirrusSearch Extension allows HTTP DoS.This issue affects Mediawiki - CirrusSearch Extension: from master before 1.43.

Affected products

• The Wikimedia Foundation Mediawiki - CirrusSearch Extension: from master before 1.43 — fixed in 1.43

How to fix

Upgrade to a fixed version: The Wikimedia Foundation Mediawiki - CirrusSearch Extension 1.43. Check the vendor advisory for mitigations.

References

• https://gerrit.wikimedia.org/r/q/I3e8d819868c0491b18368af8e543180e747023c2
• https://phabricator.wikimedia.org/T401220

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