Vulnerability Intelligence Report
Semantic MediaWiki 3.0.0 before 7.3.1 Denial of Service via Special:Search Compact Filters
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 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.
No Active Exploit Signals
CVSS Base Score
8.7
HIGH
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-407 ↗Inefficient Algorithmic Complexity
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| SemanticMediaWiki | SemanticMediaWiki | 3.0.0 < 7.3.1 (affected), 7.3.1 (unaffected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | VulnCheck · Bug Bounty Provider · USA |
| Reserved | 2026-10-27T01:00:42 |
| Published | 2026-10-27T10:23:26 |
| Patch Date | 2026-09-28 |
| Last Updated | 2026-10-27T10:26:38 |
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