CVE-2026-65589 PUBLISHED

n8n before 1.123.64 Credential Exposure via LLM Node Execution Data

Assigner: VulnCheck
Reserved: 22.07.2026 Published: 22.07.2026 Updated: 22.07.2026

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.

Metrics

CVSS 4.0

CVSS 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
CVSS Score: 5.1

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	Low	Confidentiality	High
Attack Complexity	Low	Integrity	None	Integrity	Low
Attack Requirements	Present	Availability	None	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

Product Status

Vendor	n8n-io
Product	n8n
Versions	Default: unaffected affected from 0 to 1.123.64 (excl.) Version 1.123.64 is unaffected

Vendor	n8n-io
Product	n8n
Versions	Default: unaffected affected from 0 to 2.30.1 (excl.) Version 2.30.1 is unaffected

Vendor	n8n-io
Product	n8n
Versions	Default: unaffected affected from 0 to 2.29.8 (excl.) Version 2.29.8 is unaffected

References

Problem Types

Insertion of Sensitive Information into Log File CWE