CVE-2021-41800
medium
CVSS v3
โ
CVSS v4 NEW
โ
VIR risk
5.5
Description
MediaWiki allows a denial of service
Predictions
Exploit likelihood
30%
Patch ETA
โ
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or โ if you've already worked around this in production โ publish your fix to the community-verified tier.
โ Propose a mitigation on Community โ Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Arch Fixed 1 release
| Version | Status | Fixed in |
|---|---|---|
| โ | Fixed | 1.36.2-1 |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 1:1.35.4-1 |
| sid | Fixed | 1:1.35.4-1 |
| forky | Fixed | 1:1.35.4-1 |
| bullseye | Fixed | 1:1.35.4-1~deb11u1 |
| bookworm | Fixed | 1:1.35.4-1 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Packagist | mediawiki/core | <1.36.2 | 1.36.2 |
References
- https://security-tracker.debian.org/tracker/CVE-2021-41800
- https://nvd.nist.gov/vuln/detail/CVE-2021-41800
- https://github.com/wikimedia/mediawiki/commit/781caf83dba90c18349f930bbaaa0e89f003f874
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CJDYJQWT43GBD6GNQ4OW7JOZ6WQ6DZTN
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MDBPECBWN6LWNSWIQMVXK6PP4YFEUYHA
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QNEAI2T3Y65I55ZB6UE6RMC662RZTGRX
- https://lists.wikimedia.org/hyperkitty/list/wikitech-l@lists.wikimedia.org/thread/2IFS5CM2YV4VMSODPX3J2LFHKSEWVFV5
- https://phabricator.wikimedia.org/T284419
- https://security.gentoo.org/glsa/202305-24
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.