Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-54019

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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 20.3%
CVSS Severity
CVSS v3 Score 6.5
Products affected by CVE-2026-54019


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