๐Ÿ›ก๏ธ CVE-2026-44558
๐ŸŸก CVSS 5.4 โ€” Medium โœ… No Known Exploit CWE-862 NVD
5.4
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the channel router does not call filter_allowed_access_grants on either create or update paths. A non-admin user who can create group channels (or who owns a channel) can submit arbitrary access grants โ€” including public wildcard grants โ€” and those grants are stored verbatim, bypassing the admin's permission framework. This vulnerability is fixed in 0.9.0.

Details

Severity Medium
CVSS Score 5.4
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CWE CWE-862
Public Exploit โœ… No
Source NVD
Published 2026-05-08
Updated 2026-06-15
Modified 2026-05-16
Fix URL N/A

Affected Packages

Software From version Fixed in
open-webui โ€” 0.9.0
unknown โ€” โ€”

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