CVE-2021-41800
MEDIUM5.3EPSS 0.69%MediaWiki allows a denial of service
Published: 5/24/2022Modified: 4/28/2026
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.
Affected packages (3)
- Bitnami/mediawikifrom 0, < 1.36.2
- Debian/mediawikifrom 0, < 1:1.35.4-1~deb11u1
- Packagist/mediawiki/corefrom 0, < 1.36.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
References (13)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2021-41800
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2021-41800
- WEBhttps://github.com/wikimedia/mediawiki/commit/781caf83dba90c18349f930bbaaa0e89f003f874
- WEBhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CJDYJQWT43GBD6GNQ4OW7JOZ6WQ6DZTN/
- WEBhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MDBPECBWN6LWNSWIQMVXK6PP4YFEUYHA/
- WEBhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QNEAI2T3Y65I55ZB6UE6RMC662RZTGRX/
- WEBhttps://lists.fedoraproject.org/archives/list/[email protected]/message/CJDYJQWT43GBD6GNQ4OW7JOZ6WQ6DZTN
- WEBhttps://lists.fedoraproject.org/archives/list/[email protected]/message/MDBPECBWN6LWNSWIQMVXK6PP4YFEUYHA
- WEBhttps://lists.fedoraproject.org/archives/list/[email protected]/message/QNEAI2T3Y65I55ZB6UE6RMC662RZTGRX
- WEBhttps://lists.wikimedia.org/hyperkitty/list/wikitech-l%40lists.wikimedia.org/thread/2IFS5CM2YV4VMSODPX3J2LFHKSEWVFV5/
- WEBhttps://lists.wikimedia.org/hyperkitty/list/[email protected]/thread/2IFS5CM2YV4VMSODPX3J2LFHKSEWVFV5
- WEBhttps://phabricator.wikimedia.org/T284419
- WEBhttps://security.gentoo.org/glsa/202305-24