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.
References (2)
Core 2
Core References
Exploit, Third Party Advisory
https://github.com/TOAST-Research/pocs/blob/main/openwebui/arbitirary_task_stop/report.md
Scores
CVSS v3
4.3
EPSS
0.0001
EPSS Percentile
2.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-284
Status
published
Products (2)
openwebui/open_webui
0.6.41
pypi/open-webui
0PyPI
Published
Dec 04, 2025
Tracked Since
Feb 18, 2026