ZDI-26-649: (Pwn2Own) OpenAI Codex Improper Neutralization of Control Sequences Remote Code Execution Vulnerability
This vulnerability allows remote attackers to execute arbitrary code on affected installations of OpenAI Codex. User interaction is required to exploit this vulnerability in that the target must open a malicious folder. The ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2026-19591.
Affected Software
Event History
Frequently Asked Questions
What must an attacker do to exploit this issue?
The attacker must persuade the target to open a malicious folder. Exploitation requires user interaction; the available information does not indicate that merely receiving or downloading the folder is sufficient.
Who is exposed to this vulnerability?
Installations of OpenAI Codex are affected according to the advisory. The provided information does not identify affected versions, configurations, or whether any default setup is vulnerable.
How serious is successful exploitation?
Successful exploitation allows a remote attacker to execute arbitrary code on the affected installation. ZDI assigned the issue a CVSS rating of 7.8.