Information disclosure in Open-Webui
CVE-2026-59222
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.7.0 before 0.10.0, GET /api/v1/channels//members returned full UserModelResponse objects for channel members, including settings.ui.toolServers[].key and webhook configuration, allowing a normal channel participant to retrieve other users’ sensitive settings. This issue is fixed in version 0.10.0.
Vulnerability class: Information Disclosure
EPSS: 0.003 (25.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Open-webui — versions >= 0.7.0, < 0.10.0
- Openwebui Open_webui
Weakness classification (CWE)
References
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Product, x_refsource_MISC, Release Notes)
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-59222?
- CVE-2026-59222 is a medium-severity vulnerability in Open-Webui, classified under Information Disclosure. CVSS score: 6.5/10. Published 2026-07-09.
- How severe is CVE-2026-59222?
- Medium severity. CVSS v3 base score is 6.5 out of 10.