What is CVE-2026-25631?

CVE-2026-25631 is a medium-severity vulnerability in N8n, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2026-02-06.

How severe is CVE-2026-25631?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Improper input validation in N8n

CVE-2026-25631

n8n is an open source workflow automation platform. Prior to 1.121.0, there is a vulnerability in the HTTP Request node's credential domain validation allowed an authenticated attacker to send requests with credentials to unintended domains, potentially leading to credential exfiltration. This only might affect user who have credentials that use wildcard domain patterns (e.g., *.example.com) in the "Allowed domains" setting. This issue is fixed in version 1.121.0 and later.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.003 (19.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

N8n
N8n-io N8n — versions < 1.121.0

Weakness classification (CWE)

References

security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)

Frequently asked questions

What is CVE-2026-25631?: CVE-2026-25631 is a medium-severity vulnerability in N8n, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2026-02-06.
How severe is CVE-2026-25631?: Medium severity. CVSS v3 base score is 6.5 out of 10.