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Advisories

n8n before 1.123.64 Credential Exposure via LLM Node Execution Data

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severity
medium
date
Affecting

  • n8n >= 0, < 1.123.64

  • n8n >= 0, < 2.30.1

  • n8n >= 0, < 2.29.8

CWE
  • CWE-532 Insertion of Sensitive Information into Log File
CVSS
5.1
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:H/SI:L/SA:N
Description
n8n versions before 1.123.64 fail to properly mask custom HTTP header credentials in LLM sub-node execution data, writing plaintext API keys and secrets to workflow execution records. Authenticated users with access to execution data can read exposed header values and credentials that persist in the database and can be exported.

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