cvedb.io
CVE-2026-70487
MEDIUM · CVSS 5.3
EPSS exploitation probability: 0%
Published 2026-08-04T21:16:37.480 · Last modified 2026-08-04T21:16:37.480

Summary

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.8.8 until 0.11.0, inline direct model metadata accepted client-supplied knowledge attachments without filtering them against the caller's read access. Any authenticated user who knew another user's file id could have the builtin knowledge tools return indexed chunks from that file, causing a read-only cross-user confidentiality loss while leaving knowledge-base permissions and saved workspace model validation unaffected. This issue is fixed in 0.11.0.

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.