Critical GitHub flaw CVE-2026-3854 lets attackers run code with a single git push, exploiting a command injection bug. Researchers found a critical vulnerability in GitHub, tracked as CVE-2026-3854, that allows remote code execution through a simple git push. The vulnerability affects GitHub Enterprise Cloud, GitHub Enterprise Cloud with Data Residency, GitHub Enterprise Cloud with Enterprise […]

Cybersecurity researchers have disclosed details of a critical security vulnerability impacting GitHub.com and GitHub Enterprise Server that could allow an authenticated user to obtain remote code execution with a single "git push" command. The flaw, tracked as CVE-2026-3854 (CVSS score: 8.7), is a case of command injection that could allow an attacker with push access to a repository to achieve