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CVE-2026-19593 - OpenAI Codex Arbitrary Code Execution Vulnerability

CVE ID : CVE-2026-19593 Published : Sept. 1, 2026, 6:17 p. m. • 59 minutes ago Description : OpenAI Codex Desktop for Windows and macOS automatically inspected Git metadata and working-tree status when a user opened a workspace. If the workspace contains a repository with preserved attacker-controlled . git/config, the attr. tree setting and a configured clean or process filter can cause Git to run an attacker-controlled program. The program runs outside Codex's command sandbox with the signed-in user's privileges, without a workspace-trust prompt, command approval, or interaction with a model. The attacker can read, modify, or delete files and access credentials available to that user. Exploitation requires Git to be available on PATH and the user to open the attacker-prepared repository with its local Git configuration intact.

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