CVSS 4.0
5.9 mediumCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:N/VA:N/SC:L/SI:L/SA:NCVE-2026-86074
Medium (5.9) in n8n n8n. EPSS 0.4% chance of exploitation in the next 30 days. Fixed in n8n 2.37.7, 2.38.2.
n8n is an open source workflow automation platform. Prior to 2.37.7 and 2.38.2, the Instance AI credential setup flow accepted a credential test or verification URL without checking that it matched the workflow node's origin. Attacker-controlled fetched content could influence that URL after a user injected it into the setup flow, causing authenticated requests, redirects, or probes to reach another origin. The affected logic includes packages/@n8n/instance-ai/src/tools/workflows/credential-utils.ts and the extractServiceOrigin origin derivation. This issue is fixed in versions 2.37.7 and 2.38.2.
Severity
CVSS 3.1
7.1 highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N- EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 31% of CVEs (scores of 2026-10-31)
- CWE
- CWE-918
- Published
- Modified
- Record from
- the NVD, synced
Affected
- n8n:n8n
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-q5wm-mgqx-fv2f | npm | n8n | >=2.38.0 <2.38.2 | 2.38.2 |
| GHSA-q5wm-mgqx-fv2f | npm | n8n | <2.37.7 | 2.37.7 |