What is CVE-2021-41799?

CVE-2021-41799 is a high-severity vulnerability in Mediawiki, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2021-10-11.

How severe is CVE-2021-41799?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Mediawiki

CVE-2021-41799

MediaWiki before 1.36.2 allows a denial of service (resource consumption because of lengthy query processing time). ApiQueryBacklinks (action=query&list=backlinks) can cause a full table scan.

EPSS: 0.016 (74.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Mediawiki
Fedoraproject Fedora — versions 33, 34, 35
N/a — versions n/a

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

cve@mitre.org (Permissions Required)
cve@mitre.org
cve@mitre.org (vendor-advisory)
cve@mitre.org (vendor-advisory)
cve@mitre.org (vendor-advisory)
cve@mitre.org (vendor-advisory)

Frequently asked questions

What is CVE-2021-41799?: CVE-2021-41799 is a high-severity vulnerability in Mediawiki, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2021-10-11.
How severe is CVE-2021-41799?: High severity. CVSS v3 base score is 7.5 out of 10.