CVE-2025-63681

Published: Dec 4, 2025Modified: Jun 17, 2026

4.3

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Exploitability: 2.8 / Impact: 1.4

Source: NVD

Description

open-webui v0.6.33 is vulnerable to Incorrect Access Control. The API /api/tasks/stop/ directly accesses and cancels tasks without verifying user ownership, enabling attackers (a normal user) to stop arbitrary LLM response tasks.

Affected (1)

Products: Openwebui: Open Webui

Openwebui

1 product

Open Webui

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Openwebui Open Webui	Version 0.6.41

Related CWEs

CWE-284

Improper Access Control

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

References (3)

https://github.com/TOAST-Research/pocs/blob/main/openwebui/arbitirary_task_stop/report.md

Source: cve@mitre.org

ExploitThird Party Advisory

https://github.com/open-webui/open-webui/blob/46ae3f4f5d7d4d706041bdae4ad2d802e568712b/backend/open_webui/main.py#L1652

Source: cve@mitre.org

Product

https://github.com/TOAST-Research/pocs/blob/main/openwebui/arbitirary_task_stop/report.md

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

ExploitThird Party Advisory

Timeline

No history available yet.