medium4.3
CVE-2026-109295
Open WebUI from 0.11.0 before 0.11.4 contains a regular expression denial of service vulnerability that allows authenticated users to stall server workers via …
Impact
Open WebUI from 0.11.0 before 0.11.4 contains a regular expression denial of service vulnerability that allows authenticated users to stall server workers via file search patterns. Attackers can instruct the model to call grep_knowledge_files or grep_chat_files with a catastrophically backtracking regex, blocking the event loop for two seconds per repeated call.
Affected products
| Product | Affected versions |
|---|---|
| Open WebUI From 0.11.0 | before 0.11.4 |
Versions were read from the advisory text. No structured product data has been published for this record yet.