Auth bypass in Open-Webui
CVE-2026-59227
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.8.11 before 0.10.0, POST /api/v1/images/edit required only a verified account and did not enforce the global image-edit switch or the per-user image-generation permission, allowing a non-admin user to invoke server-side image editing with administrator-configured provider credentials. This issue is fixed in version 0.10.0.
Vulnerability class: Broken Access Control
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.004 (34.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 34.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.002
Affected products
- Open-Webui — versions >= 0.8.11, < 0.10.0
- Openwebui Open Webui
Weakness classification (CWE)
References
- github.com/open-webui/open-webui/security/advisories/GHSA-rqj7-6wrp-6g2g (Exploit, Vendor Advisory)
- github.com/open-webui/open-webui/pull/26009 (Patch, Issue Tracking)
- github.com/open-webui/open-webui/commit/e038bab66dec8d17212eec35b5cb6d6b785a4200 (Patch)
- github.com/open-webui/open-webui/releases/tag/v0.10.0 (Product, Release Notes)
Frequently asked questions
- What is CVE-2026-59227?
- CVE-2026-59227 is a medium-severity vulnerability in Open-Webui, classified under Missing Authorization. CVSS score: 4.3/10. Published 2026-07-09.
- How severe is CVE-2026-59227?
- Medium severity. CVSS v3 base score is 4.3 out of 10.