What is CVE-2025-63681?

CVE-2025-63681 is a medium-severity vulnerability in Openwebui Open Webui, classified under Improper Access Control. CVSS score: 4.3/10. Published 2025-12-04.

How severe is CVE-2025-63681?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Openwebui Open Webui

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.

EPSS: 0.003 (18.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

Affected products

Openwebui Open_webui — versions 0.6.41
N/a — versions n/a

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

cve@mitre.org (Product)
cve@mitre.org (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2025-63681?: CVE-2025-63681 is a medium-severity vulnerability in Openwebui Open Webui, classified under Improper Access Control. CVSS score: 4.3/10. Published 2025-12-04.
How severe is CVE-2025-63681?: Medium severity. CVSS v3 base score is 4.3 out of 10.