CVE-2025-63681
mediumopen-webui v0.6.33 is vulnerable to Incorrect Access Control.
Vendor / product: Openwebui — open webui
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
4.3
4.3 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2025-12-04 16:16
Modified: 2026-11-04 22:10
NVD status: Modified
Last synced 4 hours ago
Verified against the source API 2026-11-04 22:37 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
openwebui / open_webui 0.6.41
Weakness classification (CWE)
NVD-CWE-noinfo CWE-284
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/TOAST-Research/pocs/blob/main/openwebui/arbitirary_task_stop/report.md cve@mitre.org
- https://github.com/open-webui/open-webui/blob/46ae3f4f5d7d4d706041bdae4ad2d802e568712b/bac... cve@mitre.org
- https://github.com/TOAST-Research/pocs/blob/main/openwebui/arbitirary_task_stop/report.md 134c704f-9b21-4f2e-91b3-4a467353bcc0
Data sources
NVD CVE API 2.0 — fetched 2026-11-04 22:37 UTC · record ↗