CVE-2026-65589

n8n before 1.123.64 Credential Exposure via LLM Node Execution Data

State: Published
Severity: 5.1 Medium
Published: Jul 22, 2026
Updated: Oct 29, 2026
Reserved: Jul 22, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	5.1 Medium	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	VulnCheck

Weaknesses

CWE-532 Insertion of Sensitive Information into Log File

Affected Products

Product	Versions
n8nn8n-io	before 1.123.64Affected 1.123.64Not affected
n8nn8n-io	2.30.0 to before 2.30.1Affected 2.30.1Not affected
n8nn8n-io	2.0.0-rc.0 to before 2.29.8Affected 2.29.8Not affected

References

GitHub Security Advisory (GHSA-89gh-3pgc-v5h2)vendor-advisory
VulnCheck Advisory: n8n before 1.123.64 Credential Exposure via LLM Node Execution Datathird-party-advisory

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.