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CVE-2026-109284

Open WebUI 0.11.0 before 0.11.4 Improper Authorization via Chat Fork Endpoint PUBLISHED

Description (CNA)

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 they created there while they had write access, inserting attacker-controlled chats visible to the folder owner and members.

Affected (CNA)

Vendor / productVersions
open-webui / open-webuiaffected 0.11.0 before 0.11.4; unaffected 0.11.4

CWE

CWE-862

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.