Auth bypass in Open-webui
CVE-2026-70484
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.7.0 until 0.11.0, the legacy chat-completions features block trusted a client-supplied image_generation flag and did not re-check the features.ima…
Vulnerability class: Broken Access Control
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:N/A:L.
Affected products
- Open-webui — versions >= 0.7.0, < 0.11.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_CONFIRM)
Frequently asked questions
- What is CVE-2026-70484?
- CVE-2026-70484 is a medium-severity vulnerability in Open-webui, classified under Missing Authorization. CVSS score: 4.3/10. Published 2026-08-04.
- How severe is CVE-2026-70484?
- Medium severity. CVSS v3 base score is 4.3 out of 10.