OpenAI Codex Command Injection Vulnerability Let Attackers Steal GitHub User Access Tokens
cybersecuritynews.com Apr 7, 2026

OpenAI Codex Command Injection Vulnerability Let Attackers Steal GitHub User Access Tokens

AI-summarised brief · reviewed before publication

A critical vulnerability in OpenAI Codex allowed attackers to steal GitHub User Access Tokens by exploiting a command-injection flaw. Researchers discovered that the system failed to sanitize input properly, enabling attackers to inject shell commands into GitHub branch names. This exposed sensitive tokens, which could be used to compromise multiple users and access entire task histories, including GitHub access tokens.