AIKIDO-2026-10855
jsii-diff is vulnerable to Command Injection
78
High Risk
This Affects:
jsii-diffTL;DR
jsii-diff accepts npm: package specifiers and interpolates the package string into shell-executed npm install and npm show commands. A crafted package specifier can inject shell metacharacters and execute additional commands when jsii-diff downloads a package for comparison. This can compromise developer machines or CI jobs that run jsii-diff on untrusted package input. The fix validates the npm package specifier against an allowlist before invoking shell-backed npm commands.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range.
Background info
jsii-diff is vulnerable to Command Injection in versions 0.9.0 - 1.130.0.
How to fix this
Upgrade the jsii-diff library to the patch version.
Are You Affected?
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