CVE-2026-54019

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.

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Produits concernés

• open-webui
• Openwebui open webui

Scores CVSS

Faiblesses (CWE)

• CWE-862
• CWE-943

Références

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

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories