Input validation error in n8n - CVE-2026-25631
Published: February 5, 2026
Vulnerability identifier: #VU122419
CSH Severity: Medium
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-25631
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to an error in the HTTP Request node's credential domain validation. A remote user can send requests with credentials to unintended domains.
Affected software
n8n
How to mitigate CVE-2026-25631
Install updates from vendor's website.
n8n - update to 1.121.0