UpHeron
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Servers and applications

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.

Severity
High 7.5
Published
6 Oct 2021
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Sources
NVD

Affected software

SoftwareAffected versions
MediaWikiServers and applications · cpe:a:mediawiki:mediawiki
  • Every version up to 1.36.2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-42040
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-42040