CyberRota Analysis
This is a medium severity vulnerability with a CVSS score of 4.0. It affects GitHub. Public exploit code or proof-of-concept references have been detected in its references.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
GitHub PoC Links
Note: these links are listed for security research and verification purposes only.
CVE
CVE-2026-56357
Severity
MEDIUM
CVSS
4
EPSS
0.19%
GitHub
Original NVD Description
n8n before 1.123.15 and 2.5.0 contains a webhook forgery vulnerability in the GitHub Webhook Trigger node that fails to implement HMAC-SHA256 signature verification. Attackers who know the webhook URL can send unsigned POST requests to trigger workflows with arbitrary data, spoofing GitHub webhook events.
Related CVEs
Other vulnerabilities affecting the same vendor(s)