What is CVE-2026-56350?

CVE-2026-56350 is a medium-severity vulnerability in N8n, classified under Improper Authorization. CVSS score: 6.3/10. Published 2026-06-30.

How severe is CVE-2026-56350?

Medium severity. CVSS v3 base score is 6.3 out of 10.

Auth bypass in N8n

CVE-2026-56350

n8n before 2.8.0 contains an authentication bypass vulnerability allowing authenticated SSO users to disable SSO enforcement through the API. Attackers can create local password credentials to authenticate directly, bypassing organizational SSO policies and identity-provider-enforced multi-factor authentication.

EPSS: 0.003 (17.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N.

Affected products

N8n — versions 0, 2.8.0

Weakness classification (CWE)

CWE-285 — Improper Authorization

References

disclosure@vulncheck.com (vendor-advisory, Mitigation, Vendor Advisory)
disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2026-56350?: CVE-2026-56350 is a medium-severity vulnerability in N8n, classified under Improper Authorization. CVSS score: 6.3/10. Published 2026-06-30.
How severe is CVE-2026-56350?: Medium severity. CVSS v3 base score is 6.3 out of 10.