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Advisories

n8n before 2.34.1 SSRF Protection Bypass via SearXNG Tool

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severity
medium
date
Affecting

  • n8n >= 0, < 2.34.1

  • n8n >= 0, < 2.33.4

CWE
  • CWE-918 Server-Side Request Forgery (SSRF)
CVSS
6.3
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N
Description
n8n before 2.34.1 and 2.33.x before 2.33.4 contains an SSRF protection bypass in the SearXNG Agent tool. The tool sent requests to the user-supplied API URL using a raw HTTP client that did not route through n8n's centralized SSRF protection. On instances with N8N_SSRF_PROTECTION_ENABLED=true, an authenticated user with permission to create SearXNG credentials and configure a personal agent could set the API URL to an internal host, causing the n8n server to connect to that host and return the response content through the Agent chat output.

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