CVE-2021-42040

An issue was discovered in MediaWiki through 1.36.2. A parser function related to loop control allowed for an infinite loop (and php-fpm hang) within the Loops extension because egLoopsCountLimit is mishandled. This could lead to memory exhaustion.

• CWE-835

• https://gerrit.wikimedia.org/r/q/I0caf6f129f94612b5bcf406a171aa5ffedea1f80Patch, Vendor Advisory
• https://phabricator.wikimedia.org/T287347Patch, Vendor Advisory
• https://gerrit.wikimedia.org/r/q/I0caf6f129f94612b5bcf406a171aa5ffedea1f80Patch, Vendor Advisory
• https://phabricator.wikimedia.org/T287347Patch, Vendor Advisory

Published

Oct 6, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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