Resource exhaustion in MediaWiki
CVE-2021-46149
An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1. A denial of service (resource consumption) can be accomplished by searching for a very long key in a Language Name Search.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.012 (67.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 67th percentile — 67.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
Weakness classification (CWE)
References
- phabricator.wikimedia.org/T293749 (Third Party Advisory)
- gerrit.wikimedia.org/r/q/Ide32704cca578b9aecbce34bdcc0ac25c2a09a4d (Third Party Advisory)
Frequently asked questions
- What is CVE-2021-46149?
- CVE-2021-46149 is a high-severity vulnerability in MediaWiki, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2022-01-10.
- How severe is CVE-2021-46149?
- High severity. CVSS v3 base score is 7.5 out of 10.