Medium severity5.3NVD Advisory· Published Oct 11, 2021· Updated Jun 17, 2026
CVE-2021-41800
CVE-2021-41800
Description
MediaWiki before 1.36.2 allows a denial of service (resource consumption because of lengthy query processing time). Visiting Special:Contributions can sometimes result in a long running SQL query because PoolCounter protection is mishandled.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
mediawiki/corePackagist | < 1.36.2 | 1.36.2 |
Affected products
3- MediaWiki/MediaWikidescription
- osv-coords2 versions
< 1.36.2+ 1 more
- (no CPE)range: < 1.36.2
- (no CPE)range: < 1.36.2
Patches
Vulnerability mechanics
References
13- github.com/wikimedia/mediawiki/commit/781caf83dba90c18349f930bbaaa0e89f003f874nvdPatchThird Party AdvisoryWEB
- github.com/advisories/GHSA-c8wv-qwwc-6j73ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-41800ghsaADVISORY
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CJDYJQWT43GBD6GNQ4OW7JOZ6WQ6DZTNghsaWEB
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MDBPECBWN6LWNSWIQMVXK6PP4YFEUYHAghsaWEB
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QNEAI2T3Y65I55ZB6UE6RMC662RZTGRXghsaWEB
- lists.wikimedia.org/hyperkitty/list/wikitech-l@lists.wikimedia.org/thread/2IFS5CM2YV4VMSODPX3J2LFHKSEWVFV5ghsaWEB
- phabricator.wikimedia.org/T284419nvdPermissions RequiredWEB
- security.gentoo.org/glsa/202305-24nvdWEB
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CJDYJQWT43GBD6GNQ4OW7JOZ6WQ6DZTN/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MDBPECBWN6LWNSWIQMVXK6PP4YFEUYHA/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QNEAI2T3Y65I55ZB6UE6RMC662RZTGRX/nvd
- lists.wikimedia.org/hyperkitty/list/wikitech-l%40lists.wikimedia.org/thread/2IFS5CM2YV4VMSODPX3J2LFHKSEWVFV5/nvd
News mentions
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