Vulnerability intelligence

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 JWT sub claim and ignored the iss claim, allowing an attacker with a valid token from one trusted issuer and a sub matching a victim under another issuer to authenticate as that victim. This issue is fixed in versions 2.27.4 and 2.28.1.

CVSS Score

7.6

High

EPSS — Exploit Probability

0.3%

Riskier than 24% of all CVEs

Exploitation

Not in CISA KEV

No federal exploitation record

Remediation

Patch available

Vendor fix published

NVD entry Vendor patch PoC / advisory

1 article across 1 outlet · first covered Jul 17, 2026 · latest Jul 17, 2026

Coverage timeline

CVE-2026-59208 Flaw Lets Attackers Impersonate n8n Users
socradar.io · Jul 17, 2026