HIGH 8.7 NVD
CVE-2026-116872
Semantic MediaWiki from 3.0.0 before 7.3.1 contains an algorithmic complexity vulnerability in TermParser::normalize_compact_form() that allows unauthenticated
Semantic MediaWiki from 3.0.0 before 7.3.1 contains an algorithmic complexity vulnerability in TermParser::normalize_compact_form() that allows unauthenticated attackers to cause quadratic CPU consumption. Attackers can submit long search terms with many distinct in:(...) or has:(...) expressions to Special:Search to exhaust PHP search workers when the extended search engine is enabled.
References
- https://github.com/SemanticMediaWiki/SemanticMediaWiki/commit/c2bf1699dec4016e21ce52613152
- https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-j2r2-7qpg-
- https://www.vulncheck.com/advisories/semantic-mediawiki-3.0.0-before-7.3.1-denial-of-servi
This high severity vulnerability with a CVSS score of 8.7 was published on 2026-10-27 via NVD.
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