VULNERABILITY INTELLIGENCE

CVE-2021-42040

CVSS score7.5 HIGH
EPSS probability1.16%
CISA KEVNot currently listed
Published2021-10-06
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

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.

Weakness classification

  • nvd@nist.gov: CWE-835

Primary references