CVE-2026-19591

OpenAI Codex CLI for Windows, macOS, and Linux and Codex Desktop for Windows and macOS misclassified certain PowerShell commands as safe because their command-safety parser interpreted PowerShell's stop-parsing token --% differently than PowerShell itself. If a user opens an attacker-prepared...

CVE-2026-19591

OpenAI Codex CLI for Windows, macOS, and Linux and Codex Desktop for Windows and macOS misclassified certain PowerShell commands as safe because their command-safety parser interpreted PowerShell's stop-parsing token --% differently than PowerShell itself. If a user opens an attacker-prepared...

CVE-2026-19591: Improper Neutralization of Escape, Meta, or Control Sequences

OpenAI Codex CLI for Windows, macOS, and Linux and Codex Desktop for Windows and macOS misclassified certain PowerShell commands as safe because their command-safety parser interpreted PowerShell's stop-parsing token --% differently than PowerShell itself. If a user opens an attacker-prepared...