CVE-2026-5762: ReportIncident DiscussionTools integration causes slow requests

Severity: medium (CVSS 5.3 v4.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-04-07 · updated 2026-07-21
Weakness: CWE-770

Description

Allocation of resources without limits or throttling vulnerability in Wikimedia Foundation MediaWiki - ReportIncident Extension allows HTTP DoS. This issue was remediated only on the `master` branch.

Affected products

Wikimedia Foundation MediaWiki - ReportIncident Extension: before 1.43; 1.43, 1.44, 1.45 — fixed in 1.43

How to fix

Upgrade to a fixed version: Wikimedia Foundation MediaWiki - ReportIncident Extension 1.43. Check the vendor advisory for mitigations.

References

https://gerrit.wikimedia.org/r/c/mediawiki/extensions/ReportIncident/+/1226884
https://phabricator.wikimedia.org/T414582

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