CVE-2026-59221
High · 7.7CVSS
7.7
EPSS
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Published
Jul 9, 2026
CISA due date
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The record
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.6 before 0.10.0, _sanitize_proxy_path in backend/open_webui/routers/terminals.py decoded proxy paths only eight times, allowing a nine-times percent-encoded ../ traversal value to pass normalization checks and be decoded by the upstream terminal server. This issue is fixed in version 0.10.0.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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