CVE-2025-63681

open-webui v0.6.33 is vulnerable to Incorrect Access Control

Medium · published December 4, 2025

CVSS v3.1
4.3
EPSS
0%
Percentile
19.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00283 · 19.8th percentile
Published
2025-12-04T00:00Z
EPSS history
Timeline
  • 04 DEC 00:00Z
    open-webui v0.6.33 is vulnerable to Incorrect Access Control
    cvelistv5