Privilege escalation in N8n
CVE-2026-65595
n8n before 2.30.1 and 2.29.8 assigns all Public API key scopes to JWTs issued through the Token Exchange module regardless of the acting user's role. On instances where the Token Exchange feature and Public API are enabled, a low-privileged user who can obtain a valid external JWT trusted by a configured issuer can use the resulting access token to invoke administrator-only Public API operations such as role escalation, user creation, and user deletion (role escalation requires an Advanced Permissions license), and, when unverified Community Package installation is enabled, achieve remote code execution.
Vulnerability class: Privilege Escalation
EPSS: 0.005 (39.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- N8n — versions 2.30.0
- N8n-io N8n — versions 0, 2.30.1, 2.29.8
Weakness classification (CWE)
References
- disclosure@vulncheck.com (vendor-advisory, Mitigation, Vendor Advisory)
- disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-65595?
- CVE-2026-65595 is a high-severity vulnerability in N8n, classified under Improper Privilege Management. CVSS score: 8.8/10. Published 2026-07-22.
- How severe is CVE-2026-65595?
- High severity. CVSS v3 base score is 8.8 out of 10.