CVE-2021-42040

Name of the Vulnerable Software and Affected Versions MediaWiki versions through 1.36.2

Description An issue was discovered in a parser function related to loop control, which allowed for an infinite loop and php-fpm hang within the Loops extension because egLoopsCountLimit is mishandled. This could lead to memory exhaustion.

Recommendations For MediaWiki versions through 1.36.2, update to a version that properly handles egLoopsCountLimit to prevent infinite loops and potential memory exhaustion. As a temporary workaround, consider disabling the Loops extension until a patch is available.