PYSEC-2026-1732 open-webui is Vulnerable to Incorrect Access Control

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...

Access Control Bypass

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Access Control Bypass via the /api/tasks/stop/taskid endpoint. An attacker can enumerate tasks running by other users and use taskid to terminate any tasks running on the server. Remediation Upgrade open-webu...

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...