CVE-2026-109284

Open WebUI from 0.11.0 before 0.11.4 contains an improper authorization vulnerability in the chat fork handler, which places forked chats in the source chat's folder without checking folder write access. Shared folder members downgraded to read-only can call POST /api/v1/chats/id/fork on chats th...

EUVD-2026-97586

Open WebUI from 0.11.0 before 0.11.4 contains an improper authorization vulnerability in the chat fork handler, which places forked chats in the source chat's folder without checking folder write access. Shared folder members downgraded to read-only can call POST /api/v1/chats/id/fork on chats th...

CVE-2026-109284 Open WebUI 0.11.0 before 0.11.4 Improper Authorization via Chat Fork Endpoint

Open WebUI from 0.11.0 before 0.11.4 contains an improper authorization vulnerability in the chat fork handler, which places forked chats in the source chat's folder without checking folder write access. Shared folder members downgraded to read-only can call POST /api/v1/chats/id/fork on chats th...

CVE-2026-109284

Open WebUI versions 0.11.0 before 0.11.4 are vulnerable to an improper authorization flaw in the chat fork handler. The application fails to verify folder write permissions when placing forked chats into a source chat's folder. Specifically, shared folder members who have been downgraded to read-...