CVE-2026-59227: open-webui Missing Authorization

Vulnerability summary

CVE-2026-59227 is a medium (CVSS 5.4) Missing Authorization vulnerability in open-webui. EPSS estimates a 0.42% chance of exploitation in the next 30 days, higher than 35.1% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 09-07-2026
   PublishedVulnerability first disclosed.
2. 14-07-2026
   Last modifiedVulnerability information updated.

Description

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.

• CWE-862Missing AuthorizationThe product does not perform an authorization check when an actor attempts to access a resource or perform an action.
• CWE-863Incorrect AuthorizationThe product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.