{"id":"CVE-2026-116871","aliases":[],"title":"Semantic MediaWiki 3.0.0 before 7.3.1 Uncontrolled Recursion via Special:Ask","titleSource":"VulnCheck","descriptionSource":"VulnCheck","products":[{"vendor":"SemanticMediaWiki","name":"SemanticMediaWiki","platforms":[],"versions":[{"version":"3.0.0","status":"affected","lessThan":"7.3.1","versionType":"semver"},{"version":"7.3.1","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected","source":"VulnCheck","url":"https://www.cve.org/CVERecord?id=CVE-2026-116871"}],"remediation":[],"description":"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workers.","severity":"high","score":8.7,"published":"2026-10-27T10:23:26.290Z","modified":"2026-10-27T10:26:38.191Z","withdrawn":false,"knownExploited":false,"affected":[],"references":["https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-f8vw-wvm6-h2qq","https://github.com/SemanticMediaWiki/SemanticMediaWiki/commit/756492002752f937a9e115e14330b1181bd8c60c","https://github.com/SemanticMediaWiki/SemanticMediaWiki/commit/e642f38c708dee7da5e885b8d40be8ffc56f3e87","https://www.vulncheck.com/advisories/semantic-mediawiki-3.0.0-before-7.3.1-uncontrolled-recursion-via-special-ask"],"sources":[{"name":"CVE","id":"CVE-2026-116871","modified":"2026-10-27T10:26:38.191Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-116871"}],"assessments":[{"source":"VulnCheck","vector":"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","score":8.7},{"source":"VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5}],"sourceAffected":[],"kev":{"status":"not-listed","checkedAt":"2026-10-29T05:15:30.396Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}