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CVE PROGRAM SOURCE RECORD7.7 High

CVE-2026-59221

open-webui terminal proxy path traversal guard bypass via 9x encoded traversal

Description

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 products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

open-webui open-webui

  • >= 0.9.6, < 0.10.0affected

References