GitHub Fixes RCE Flaw that Gave Access to Millions of Private Repos

GitHub employees fixed a critical remote code execution vulnerability in less than six hours last month. Wiz Research used AI models to uncover a vulnerability in GitHub's internal git infrastructure that could have allowed attackers to access millions of public and private code repositories. "Our security team immediately began validating the bug bounty report. Within 40 minutes, we had reproduced the vulnerability internally and confirmed the …

In early March, GitHub patched a critical remote code execution vulnerability (CVE-2026-3854) that could have allowed attackers to access millions of private repositories.

A critical failure on the GitHub platform is generating global concern among developers and security experts. Vulnerability, identified as CVE-2026-3854, has been discovered by Wiz and allows remote code execution (RCE) from a simple git push command. The severity of the problem is in the ease of exploitation. A daily routine command can be manipulated to compromise servers, opening the way for improper access and execution of malicious commands…

The now‑patched flaw allowed authenticated users to execute arbitrary code via crafted git push requests, affecting GitHub.com and Enterprise Server.

Open source code platform dodges bullet with quick response.

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

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