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.
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Affected Vendors & Products
Advisories
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Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Tue, 27 Oct 2026 10:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | Semantic MediaWiki 3.0.0 before 7.3.1 Denial of Service via Special:Search Compact Filters | |
| First Time appeared |
Semantic-mediawiki
Semantic-mediawiki semantic Mediawiki |
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| Weaknesses | CWE-407 | |
| CPEs | cpe:2.3:a:semantic-mediawiki:semantic_mediawiki:*:*:*:*:*:mediawiki:*:* | |
| Vendors & Products |
Semantic-mediawiki
Semantic-mediawiki semantic Mediawiki |
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| References |
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| Metrics |
cvssV3_1
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Projects
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-10-27T10:26:38.802Z
Reserved: 2026-10-27T01:00:42.500Z
Link: CVE-2026-116872
No data.
Status : Received
Published: 2026-10-27T11:17:28.970
Modified: 2026-10-27T11:17:28.970
Link: CVE-2026-116872
No data.
OpenCVE Enrichment
Updated: 2026-10-27T11:30:13Z
Weaknesses