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.
{
"github_reviewed": true,
"github_reviewed_at": "2025-12-05T02:21:41Z",
"severity": "LOW",
"nvd_published_at": "2025-12-04T16:16:22Z",
"cwe_ids": [
"CWE-284"
]
}