Arbitrary Code Injection Affecting @openai/codex package, versions <0.23.0
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-JS-OPENAICODEX-16111764
- published20 Apr 2026
- disclosed14 Apr 2026
- creditIsabel Mill, Oded Vanunu
Introduced: 14 Apr 2026
NewCVE-2025-61260 (opens in a new tab)How to fix?
Upgrade @openai/codex to version 0.23.0 or higher.
Overview
@openai/codex is a
OpenAI Codex CLI
Lightweight coding agent that runs in your terminal
Affected versions of this package are vulnerable to Arbitrary Code Injection via the automatic loading of .env and .codex/config.toml files when executing the CLI in a compromised repository. An attacker can execute arbitrary commands by embedding malicious payloads in these configuration files.