CVE-2026-109298
6.5 MEDIUMpublic exploit availablePublished 2026-10-12 · Updated 2026-10-13
AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.
NVD description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-400
Public exploit & PoC references
All references
- https://github.com/open-webui/open-webui/commit/97e013a66169c4fcd7f26ab9e41a4ff260ffd4da
- https://github.com/open-webui/open-webui/security/advisories/GHSA-gww9-mhgj-pfqh
- https://www.vulncheck.com/advisories/open-webui-0.11.0-before-0.11.4-memory-exhaustion-via-knowledge-search-regex
- https://github.com/open-webui/open-webui/security/advisories/GHSA-gww9-mhgj-pfqh
Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.
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