CVE-2025-63681

MEDIUM EPSS 17.1%
Published Dec 4, 20256mo ago · Modified Jun 17, 20261w ago
4.3 CVSS 3.1
Medium
Find Similar
Published Dec 4, 2025 6mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
4.3
Exploitability
2.8
Impact
1.4
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
17.1% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-284

Affected Products 1

VendorProductVersionRange
openwebuiopen_webui0.6.41any

References 2

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.