CVE-2026-59221

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.

CVSS v3 7.7 HIGH

7.7^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.1 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/open-webui/open-webui/commit/05098d25a58d03738e01c4e85e8852c3b4ad849c	Patch
https://github.com/open-webui/open-webui/pull/26050	Issue Tracking Patch
https://github.com/open-webui/open-webui/releases/tag/v0.10.0	Product Release Notes
https://github.com/open-webui/open-webui/security/advisories/GHSA-frvj-c5qp-xj4w	Exploit Mitigation Vendor Advisory
https://github.com/open-webui/open-webui/security/advisories/GHSA-frvj-c5qp-xj4w	Exploit Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:openwebui:open_webui:0.9.6:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-07-09 18:16

Updated : 2026-07-10 02:37

NVD link : CVE-2026-59221

Mitre link : CVE-2026-59221

CVE.ORG link : CVE-2026-59221

JSON object : View

Products Affected

openwebui

open_webui

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CWE-918

Server-Side Request Forgery (SSRF)

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