CVE CVE-2026-54019

CVE-2026-54019

Express

Severity: MEDIUM
CVSS: 6.5CVSS
Published: 2026-06-23
Last modified: 2026-06-23
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CWE: CWE-862CWE-943

Description

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, Open WebUI added collection-level ACL checks, but the patch can still be bypassed when Milvus multitenancy mode is enabled. The ACL allows unknown non-KB collection names as legacy/ephemeral collections. In Milvus multitenancy mode, that user-controlled collection name becomes a resource_id and is interpolated into a Milvus expression without escaping. This is caused by an incomplete fix for CVE-2026-44560 This vulnerability is fixed in 0.9.6.

References

https://github.com/open-webui/open-webui/security/advisories/GHSA-p5cp-r7rg-qpxc

Summary

Description

References