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Advisories

n8n before 1.123.69 Credential Leak via GraphQL Node Error

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severity
high
date
Affecting

  • n8n >= 0, < 1.123.69

  • n8n >= 0, < 2.34.1

  • n8n >= 0, < 2.33.4

CWE
  • CWE-209 Generation of Error Message Containing Sensitive Information
CVSS
7.1
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Credit
Masofgon
Description
n8n versions before 1.123.69, 2.33.4, and 2.34.1 contain an information disclosure vulnerability in the GraphQL node. When a GraphQL request fails at the connection level, the node re-throws the underlying HTTP client error unchanged instead of wrapping it in n8n's standard error type. That error contains the live request's headers, including a decrypted credential secret, which the execution engine persists verbatim. Any authenticated user able to read the resulting execution can retrieve the decrypted credential secret from the stored run data.

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