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CVE-2026-109295

Open WebUI 0.11.0 before 0.11.4 ReDoS via grep_knowledge_files Event Loop PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
open-webui / open-webuiaffected 0.11.0 before 0.11.4; unaffected 0.11.4

CWE

CWE-1333

References

ADP enrichment

CISA-ADP

No English description supplied.