Advisoriesby IbisOpen WebUIGHSA-frv8-gffc-37px
open-webui is Vulnerable to Incorrect Access Control
No fix yet
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.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| open-webui PyPI | <= 0.6.33 | No fix yet |
Details and references
- CVSS 4.0
- CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
- Severity from
- GitHub (reviewed advisory)
- Weakness
- CWE-284
- Also known as
- CVE-2025-63681, PYSEC-2026-1732
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