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Description

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.5.7, a user can modify another user's model even if its visibility is set to Private. By changing the access permissions during editing, unauthorized access can be gained. This vulnerability is fixed in 0.5.7.

PUBLISHED Reserved 2026-05-11 | Published 2026-05-15 | Updated 2026-05-18 | Assigner GitHub_M




MEDIUM: 6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Problem types

CWE-285: Improper Authorization

Product status

< 0.5.7
affected

References

github.com/...-webui/security/advisories/GHSA-gm54-m39w-grjp exploit

github.com/...-webui/security/advisories/GHSA-gm54-m39w-grjp

cve.org (CVE-2026-45345)

nvd.nist.gov (CVE-2026-45345)

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