CVE-2026-116871EUVD-2026-110699GHSA-P6M4-5726-45X8
Semantic MediaWiki 3.0.0 before 7.3.1 Uncontrolled Recursion via Special:Ask
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 7.3.1
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
Semantic MediaWiki, an extension for the MediaWiki wiki platform, is affected by this vulnerability. An unauthenticated attacker can send deeply nested queries through its Special:Ask or API query feature, causing excessive CPU and memory use that can slow or stall the server.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original 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.
Timeline
- CVE published
- Record last updated
- First seen by cve.now
Affected versions
- SemanticMediaWiki SemanticMediaWiki
From 3.0.0 · fixed in 7.3.1