CVE-2026-116871highCWE-674

CVE-2026-116871: high-severity vulnerability in SemanticMediaWiki

Semantic MediaWiki 3.0.0 before 7.3.1 Uncontrolled Recursion via Special:Ask

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21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 8.7epss 0.4%
Semantic MediaWiki 3.0.0 before 7.3.1 contains an uncontrolled recursion vulnerability in LegacyParser::getSubqueryDescription() that processes nested query tokens before depth limits apply. Unauthenticated attackers can submit deeply nested query elements to the action=ask API to consume substantial CPU and memory, tying up request workers.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Affected products
SemanticMediaWiki · SemanticMediaWiki
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