What is CVE-2026-54305?

CVE-2026-54305 is a critical-severity vulnerability in N8n, classified under Information Disclosure. CVSS score: 9.9/10. Published 2026-06-23.

How severe is CVE-2026-54305?

Critical severity. CVSS v3 base score is 9.9 out of 10.

Information disclosure in N8n

CVE-2026-54305

n8n is an open source workflow automation platform. Prior to 1.123.55, 2.25.7, and 2.26.2, three EE endpoints used by the Dynamic Credentials feature accepted any authenticated n8n session without performing per-resource ownership or scope…

Vulnerability class: Information Disclosure

EPSS: 0.004 (35.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L.

Affected products

N8n
N8n-io N8n — versions < 1.123.55, >= 2.0.0-rc.0, < 2.25.7, >= 2.26.0, < 2.26.2

Weakness classification (CWE)

References

security-advisories@github.com (x_refsource_CONFIRM, Mitigation, Vendor Advisory)

Frequently asked questions

What is CVE-2026-54305?: CVE-2026-54305 is a critical-severity vulnerability in N8n, classified under Information Disclosure. CVSS score: 9.9/10. Published 2026-06-23.
How severe is CVE-2026-54305?: Critical severity. CVSS v3 base score is 9.9 out of 10.