CVE-2026-34222

EUVD-2026-17977
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.8.11, there is a broken access control vulnerability in tool values. This issue has been patched in version 0.8.11.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.7 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 1%
Affected Products (NVD)
VendorProductVersion
openwebuiopen_webui
𝑥
< 0.8.11
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/open-webui/open-webui/releases/tag/v0.8.11
https://github.com/open-webui/open-webui/security/advisories/GHSA-7429-hxcv-268m
http://seclists.org/fulldisclosure/2026/Apr/4