Security Advisory

CVE-2026-70483

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-08-04 19:54:35

Last updated 2026-08-05 19:03:01

Assigner GitHub_M

CVSS score not scored

State PUBLISHED

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.

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