Medium severity4.3NVD Advisory· Published Nov 11, 2026
CVE-2026-126562
CVE-2026-126562
Description
Semantic MediaWiki 3.0.0 before 7.4.1 contains an uncontrolled recursion vulnerability in the ElasticStore ConceptDescriptionInterpreter that only detects directly self-referencing concepts. Users with page-edit rights can create mutually referencing concept pages, causing concept page views, Special:Ask, or api.php action=ask queries to exhaust PHP memory or stack.
Affected products
1- Range: <7.4.1
Patches
Vulnerability mechanics
References
5- github.com/SemanticMediaWiki/SemanticMediaWiki/blob/7.4.0/src/Elastic/QueryEngine/DescriptionInterpreters/ConceptDescriptionInterpreter.phpnvd
- github.com/SemanticMediaWiki/SemanticMediaWiki/commit/35d8f8c9c7b48a476751ca0b795b78b648756828nvd
- github.com/SemanticMediaWiki/SemanticMediaWiki/releases/tag/7.4.1nvd
- github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-jwx8-mm92-gv95nvd
- www.vulncheck.com/advisories/semantic-mediawiki-3.0.0-before-7.4.1-uncontrolled-recursion-via-elasticstore-conceptdescriptioninterpreternvd
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