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.
Metrics
Affected Vendors & Products
References
History
Sat, 31 Oct 2026 03:30:00 +0000
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ssvc
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Tue, 27 Oct 2026 10:45:00 +0000
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| 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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Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-10-27T10:23:26.944Z
Updated: 2026-10-31T02:30:17.617Z
Reserved: 2026-10-27T01:00:42.500Z
Link: CVE-2026-116872
Updated: 2026-10-31T02:30:12.706Z
Status : Analyzed
Published: 2026-10-27T11:17:28.970
Modified: 2026-11-04T01:22:07.183
Link: CVE-2026-116872
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