CVE-2026-70487 | BDVDB-2026-355245 Detail

Description#

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.

Impact#

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Exploit#

History#

1. Version 12026-08-04Record published in the CVE List.
2. Version 22026-08-05Most recent update recorded in the CVE List.