Version

v23.9.0

Platform

Darwin 24.3.0 Darwin Kernel Version 24.3.0: Thu Jan  2 20:24:23 PST 2025; root:xnu-11215.81.4~3/RELEASE_ARM64_T8122 arm64

Subsystem

util.parseEnv

What steps will reproduce the bug?

Just run the following code:

import { parseEnv } from "node:util";
console.log(parseEnv("A=B=C"));

How often does it reproduce? Is there a required condition?

Problem occurs on every run. This behaviour doesn't exist when using dotenv library.

What is the expected behavior? Why is that the expected behavior?

Output should be:

{ A: 'B=C' }

What do you see instead?

Output is:

{ A: 'B=C', B: 'C' }

Additional information

This behaviour might lead to undesirable side effects (even security might be affected).