CVE ID :CVE-2026-87995
Published : Sept. 9, 2026, 10:18 p.m. | 2 hours, 41 minutes ago
Description :Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.8.11 until 0.11.1, src/lib/components/chat/FileNav/PortPreview.svelte rendered terminal port content in an iframe sandbox containing both allow-scripts and allow-same-origin. Because the terminal proxy serves that content from the Open WebUI origin, an authenticated user with access to a shared terminal server could host script on a previewed port and take over a victim’s account when the victim opened the preview. This issue is fixed in version 0.11.1.
Severity: 8.7 | HIGH
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Published : Sept. 9, 2026, 10:18 p.m. | 2 hours, 41 minutes ago
Description :Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.8.11 until 0.11.1, src/lib/components/chat/FileNav/PortPreview.svelte rendered terminal port content in an iframe sandbox containing both allow-scripts and allow-same-origin. Because the terminal proxy serves that content from the Open WebUI origin, an authenticated user with access to a shared terminal server could host script on a previewed port and take over a victim’s account when the victim opened the preview. This issue is fixed in version 0.11.1.
Severity: 8.7 | HIGH
Visit the link for more details, such as CVSS details, affected products, timeline, and more…