Auth bypass in N8n
CVE-2026-85173
n8n versions before 2.36.2 contain a missing per-project authorization vulnerability in the Insights API routes that allows authenticated users with insights scopes to access workflow names and execution statistics across projects. Attackers can supply arbitrary projectId parameters to retrieve sensitive project and workflow information from projects they have no membership in.
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.003 (26.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 26.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001
Affected products
Weakness classification (CWE)
References
- github.com/n8n-io/n8n/security/advisories/GHSA-jmmj-93rg-6j39 (vendor-advisory, Mitigation, Vendor Advisory)
- www.vulncheck.com/advisories/n8n-before-2.36.2-missing-authorization-via-insigh… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-85173?
- CVE-2026-85173 is a medium-severity vulnerability in N8n, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-09-03.
- How severe is CVE-2026-85173?
- Medium severity. CVSS v3 base score is 4.3 out of 10.