CVE-2025-63681

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.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/TOAST-Research/pocs/blob/main/openwebui/arbitirary_task_stop/report.md	Exploit Third Party Advisory
https://github.com/open-webui/open-webui/blob/46ae3f4f5d7d4d706041bdae4ad2d802e568712b/backend/open_webui/main.py#L1652	Product
https://github.com/TOAST-Research/pocs/blob/main/openwebui/arbitirary_task_stop/report.md	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:openwebui:open_webui:0.6.41:*:*:*:*:*:*:*

History

No history.

Information

Published : 2025-12-04 16:16

Updated : 2025-12-05 20:15

NVD link : CVE-2025-63681

Mitre link : CVE-2025-63681

CVE.ORG link : CVE-2025-63681

JSON object : View

Products Affected

openwebui

open_webui

CWE

NVD-CWE-noinfo CWE-284

Improper Access Control

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