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Open WebUI: Cross-user file disclosure via /api/chat/completions image_url field

🗓️ 17 Jun 2026 14:11:44Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 4 Views

Cross-user file access via image_url in chat completions reads other users' files as base64 data without ownership checks.

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17 Jun 2026 14:11Current
5.3Medium risk
Vulners AI Score5.3
CVSS 3.16.5
EPSS0.00278
SSVC
4