AUGUST 24, 2026
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Case File

CVE-2026-59221

HIGH · CVSS 7.7 EPSS 0.36% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-09 · Last synced 2026-08-08

CyberRota Analysis

AI-Generated

The vulnerability in Open WebUI allows attackers to exploit improper path sanitization in versions prior to 0.10.0, enabling them to bypass normalization checks and potentially access unauthorized directories on the upstream terminal server. This could lead to unauthorized file access or command execution, posing a significant risk to the integrity and confidentiality of the system. Organizations using affected versions should prioritize upgrading to version 0.10.0 to mitigate this high-severity vulnerability.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-59221
Severity
HIGH
CVSS
7.7
EPSS
0.36%

Original NVD 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.

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