CVE-2025-24959 LOW

CVE-2025-24959: Environment Variable Injection for dotenv API in zx

Vendor Google
Product zx
Weakness CWE-94 · Code injection
Published February 3, 2025
Last update February 12, 2025

CVSS base score

1.0/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

What the vulnerability does

01Description

zx is a tool for writing better scripts. An attacker with control over environment variable values can inject unintended environment variables into `process.env`. This can lead to arbitrary command execution or unexpected behavior in applications that rely on environment variables for security-sensitive operations. Applications that process untrusted input and pass it through `dotenv.stringify` are particularly vulnerable. This issue has been patched in version 8.3.2. Users should immediately upgrade to this version to mitigate the vulnerability. If upgrading is not feasible, users can mitigate the vulnerability by sanitizing user-controlled environment variable values before passing them to `dotenv.stringify`. Specifically, avoid using `"`, `'`, and backticks in values, or enforce strict validation of environment variables before usage.

Key dates

02Disclosure timeline

February 3, 2025 CVE published
February 12, 2025 Record updated