CVE Catalog

CVE-2026-70494

HighCVSS 8.1
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.30%

22th percentile - higher than 22% of all known CVEs

Summary

In Open WebUI from 0.10.0 until 0.11.0, the DELETE /api/v1/folders/{id} handler allowed a user with write access to a shared chat folder to permanently delete chats and messages belonging to the folder owner. The authorization check did not require ownership or administrator status, and the cascade was bound to the owner's id. A collaborator can destroy the owner's subtree or force-move chats out of it.

Risk Assessment

A user with limited privileges can permanently delete the folder owner's data, leading to data loss and integrity compromise within the organization.

Recommendation

Upgrade Open WebUI to version 0.11.0 immediately, which contains the fix. Also review access permissions for shared folders.

Other vulnerabilities in Open WebUI

See all
Original NVD description (English source)

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.10.0 until 0.11.0, the DELETE /api/v1/folders/{id} handler in backend/open_webui/routers/folders.py allowed a user granted write access to a shared chat folder to permanently delete chats and messages belonging to the folder owner. The cascade following the authorization check is bound to the folder owner's id, but the subfolder check accepted any inherited write grant instead of requiring ownership or administrator status. A collaborator can destroy the owner's subtree or force-move chats out of it when delete_contents=false. This issue is fixed in 0.11.0.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS