CVE Watch23 oct 2026

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

CVSS

4.3

Medio

EPSS

0.3%

p22

KEV

—

Exploit Today

0-100

Publicado: 12 oct 2026 · Última mod.: 23 oct 2026 · CWE-1333

EPSS · 30d

0.3%EPSS · 30 días0.3%

2026-10-132026-10-23

Descripción técnica

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.

Referencias oficiales

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