Auth bypass in Open-webui
CVE-2026-70482
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.8.0 until 0.11.0, when ENABLE_OAUTH_TOKEN_EXCHANGE=True, /oauth/{provider}/token/exchange accepts a raw provider access token and validates it by…
Vulnerability class: Broken Authentication
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N.
Affected products
- Open-webui — versions >= 0.8.0, < 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-2026-70482?
- CVE-2026-70482 is a high-severity vulnerability in Open-webui, classified under Improper Authentication. CVSS score: 8.1/10. Published 2026-08-04.
- How severe is CVE-2026-70482?
- High severity. CVSS v3 base score is 8.1 out of 10.