Advisories

Nezha 2.1.0 before 2.3.15 Host Header Injection via MCP Transfer Tools

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Severity
medium
Date
Affecting
  • nezha >= 2.1.0, < 2.3.15

CWE
  • CWE-601 URL Redirection to Untrusted Site ('Open Redirect')
CVSS
6.3
CVSS V4 Vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Credit
manus-use
Description
Nezha from 2.1.0 before 2.3.15 contains a host header injection vulnerability in mintTransferTool that builds fs.download_url and fs.upload_url transfer URLs from the unvalidated Host header. Attackers who control the Host header seen on a victim's MCP request can redirect file uploads or capture one-time download tokens and replay them to exfiltrate files.

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