Incorrect Regular Expression in n8n - CVE-2025-68949
Published: January 13, 2026
Vulnerability identifier: #VU121206
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2025-68949
CWE-ID: CWE-185
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: n8n
Affected software:
n8n
n8n
Detailed vulnerability description
The vulnerability allows a remote attacker to bypass IP whitelisting.
The vulnerability exists due to application is using martial string matching instead of exact IP comparison when making a decision to allow access from a specific IP address. A remote attacker can bypass configured rules for whitelisted IP addresses and gain unauthorized access to the application. The vulnerability affects both Pv4 and IPv6 addresses.
How to mitigate CVE-2025-68949
Install updates from vendor's website.