Detections
Analytics
CVE-2026-70483
low
Description
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.6 until 0.11.0, DELETE /api/v1/chats/{id} cancelled a chat's in-flight tasks before checking whether the caller could delete that chat. Any authenticated user who knew another user's chat id could abort that user's running model response, title generation, or tag generation, even though the delete was refused and no chat data was deleted, modified, or disclosed. This issue is fixed in 0.11.0.
References
https://github.com/open-webui/open-webui/security/advisories/GHSA-3vf6-64vr-3g56
https://github.com/open-webui/open-webui/releases/tag/v0.11.0
https://github.com/open-webui/open-webui/pull/27006
https://github.com/open-webui/open-webui/commit/4f93c3e36c1734342a32c312bdb0516c66d8e93c