What is CVE-2026-59208?

CVE-2026-59208 is a medium-severity vulnerability in N8n, classified under Improper Authentication. CVSS score: 6.8/10. Published 2026-07-09.

How severe is CVE-2026-59208?

Medium severity. CVSS v3 base score is 6.8 out of 10.

Auth bypass in N8n

CVE-2026-59208

n8n is an open source workflow automation platform. Prior to 2.27.4 and from 2.28.0 prior to 2.28.1, n8n instances configured with more than one trusted token-exchange issuer resolved external identities to local accounts using only the JW…

Vulnerability class: Broken Authentication

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N.

Affected products

N8n — versions 2.28.0
N8n-io N8n — versions >= 2.28.0, < 2.28.1, < 2.27.4

Weakness classification (CWE)

References

security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
security-advisories@github.com (x_refsource_MISC, Release Notes)
security-advisories@github.com (x_refsource_MISC, Release Notes)

Frequently asked questions

What is CVE-2026-59208?: CVE-2026-59208 is a medium-severity vulnerability in N8n, classified under Improper Authentication. CVSS score: 6.8/10. Published 2026-07-09.
How severe is CVE-2026-59208?: Medium severity. CVSS v3 base score is 6.8 out of 10.