CVSS 4.0
6.0 mediumCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:NCVE-2026-86084
Medium (6.0) in n8n n8n. EPSS 0.5% chance of exploitation in the next 30 days. Fixed in n8n 1.123.76, 2.37.7, 2.38.2.
n8n is an open source workflow automation platform. Prior to 1.123.76, 2.37.7, and 2.38.2, the public OIDC login and callback endpoints completed authentication even when OIDC was not the enabled active authentication method. An Enterprise administrator who had configured and later disabled an identity provider still exposed a working route that could issue valid sessions. The affected logic is packages/cli/src/modules/sso-oidc/oidc.service.ee.ts, including generateLoginUrl and the callback flow that lacked assertOidcLoginEnabled. This issue is fixed in versions 1.123.76, 2.37.7 and 2.38.2.
Severity
CVSS 3.1
5.5 mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N- EPSS
- 0.5% chance of exploitation in the next 30 days; higher than 39% of CVEs (scores of 2026-10-31)
- CWE
- CWE-288
- Published
- Modified
- Record from
- the NVD, synced
Affected
- n8n:n8n
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-pf83-w3f9-8m37 | npm | n8n | <1.123.76 | 1.123.76 |
| GHSA-pf83-w3f9-8m37 | npm | n8n | >=2.38.0 <2.38.2 | 2.38.2 |
| GHSA-pf83-w3f9-8m37 | npm | n8n | >=2.0.0 <2.37.7 | 2.37.7 |