CVSS 3.1
8.7 highCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:NCVE-2026-87995
High (8.7) in openwebui open webui. EPSS 0.4% chance of exploitation in the next 30 days. Fixed in open-webui 0.11.1.
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
- EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 36% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-79, CWE-1021
- Published
- Modified
- Record from
- the NVD, synced
Affected
- openwebui:open_webui
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-jmc6-2wr8-h3wj | PyPI | open-webui | >=0.8.11 <0.11.1 | 0.11.1 |
| PYSEC-2026-4123 | PyPI | open-webui | >=0.8.11 <0.11.1 | 0.11.1 |
References
- https://github.com/open-webui/open-webui/commit/54d7a223707f03172efbb9e754db6e69709956d0
- https://github.com/open-webui/open-webui/releases/tag/v0.11.1
- https://github.com/open-webui/open-webui/security/advisories/GHSA-jmc6-2wr8-h3wj
- https://github.com/open-webui/open-webui/security/advisories/GHSA-jmc6-2wr8-h3wj