CVE-2026-65596

n8n before 1.123.64 Credential Exfiltration via GraphQL Node

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

Description

n8n before 1.123.64, 2.29.8, and 2.30.1 fails to enforce the "Allowed HTTP Request Domains" restriction on HTTP-based credentials (Header Auth, Basic Auth, Query Auth, OAuth) in the GraphQL node, unlike the HTTP Request node. An authenticated user able to create or edit workflows can point the node's endpoint at a server they control and exfiltrate restricted credentials. Only instances where a credential has "Allowed HTTP Request Domains" configured and is usable by non-owner users are affected.

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-863 Incorrect Authorization

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 to before 2.29.8Affected 2.29.8Not affected

References

GitHub Security Advisory (GHSA-gq66-9cw5-j5jm)vendor-advisory
VulnCheck Advisory: n8n before 1.123.64 Credential Exfiltration via GraphQL Nodethird-party-advisory

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