CVE-2026-65599
Published:July 22, 2026
Updated:August 04, 2026
n8n versions before 1.123.64, 2.29.8, and 2.30.1 contain a credential exposure vulnerability: when configured with a Google Service Account key, the full PEM private key was mistakenly placed in the JWT header's kid field (intended only for a key identifier). Because JWT headers are Base64-encoded rather than encrypted, the private key could be recovered by anything that logged or inspected the JWT. An attacker who obtained the key could impersonate the service account and access or modify any Google Cloud resource it was authorized to use. Only instances using Google Service Account credentials are affected.
Affected Packages
n8n (NPM):
Affected version(s) >=2.0.0-rc.0 <2.29.8Fix Suggestion:
Update to version 2.29.8n8n (NPM):
Affected version(s) =2.30.0 <2.30.1Fix Suggestion:
Update to version 2.30.1n8n (NPM):
Affected version(s) >=2.0.0 <2.29.8Fix Suggestion:
Update to version 2.29.8n8n (NPM):
Affected version(s) >=0.0.1 <1.123.64Fix Suggestion:
Update to version 1.123.64Related Resources (8)
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Contact UsCVSS v4
Base Score:
5
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
HIGH
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
LOW
Subsequent System Availability
LOW
CVSS v3
Base Score:
4.1
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Cleartext Storage of Sensitive Information
EPSS
Base Score:
0.15