CVE-2026-103252 — n8n before 1.123.80, 2.39.6, and 2.40.1 Information Disclosure via Credential Test Endpoint
n8n versions before 1.123.80, from 2.0.0 before 2.39.6, and from 2.40.0 before 2.40.1 contain an authorization bypass vulnerability in the credential test endpoint that resolves…
Published: 2026-10-01 · CVSS: 7.1 · CVSS 4.0
n8n versions before 1.123.80, from 2.0.0 before 2.39.6, and from 2.40.0 before 2.40.1 contain an authorization bypass vulnerability in the credential test endpoint that resolves project-scoped variables without validating caller access. Attackers can specify an arbitrary project ID in the request body to interpolate sensitive variables into credential test requests sent to attacker-controlled hosts for exfiltration.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7