CVE-2026-65589

Medium

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.

SeverityMedium

CVSS6.5

Exploit probability—

Product

N8n

PublishedJul 22, 2026

First seenJul 22, 2026

Weakness typeCWE-532CWE-532

How to fix

Update

n8n n8n1.123.64, 2.29.8 or later
n8n1.123.64, 2.30.1, 2.29.8 or later

Vendor advisories

github.com/n8n-io/n8n/security/advisories/GHSA-89gh-3pgc-v5h2

Affected products

Product	Affected versions	Fixed in
n8n n8n	v < 1.123.64, 2.0.0 ≤ v < 2.29.8, 2.30.0	1.123.64, 2.29.8
n8nnpm	v < 1.123.64, 2.30.0 ≤ v < 2.30.1, 2.0.0-rc.0 ≤ v < 2.29.8	1.123.64, 2.30.1, 2.29.8

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