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CVE-2026-109298

7.1 high SSVC exploitation: poc Published
NVD · CVE.org

Open WebUI 0.11.0 before 0.11.4 compiles user-chosen grep patterns for its knowledge and chat file search tools with a regex engine that expands nested counted repetition unbounded at compile time and caches the result. Authenticated users can have the model call grep_knowledge_files with short nested-repetition patterns, blocking the event loop and exhausting worker memory.

Fix

Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.

Change history 3

  1. StatusAwaiting Analysis → PublishedNVD modified 2026-10-23 21:57
  2. CwesCWE-400 → CWE-400, CWE-770NVD modified 2026-10-23 22:16
  3. First seenCVSS 7.1NVD modified 2026-10-13 20:39

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 4