AIKIDO-2026-247566
composer/composer is vulnerable to OS Command Injection
77
High Risk
This Affects:
composer/composerTL;DR
Composer can resolve a package's source through the Perforce p4 command-line client. It does not validate that a Perforce source URL points to a network endpoint before handing it to p4, and the client treats certain address forms as directives to spawn a local helper process such as rsh. A package hosted in a non-Packagist repository can supply a crafted Perforce URL so that arbitrary commands run on the machine performing a source install. The fix restricts Perforce source URLs to network endpoints so they can no longer trigger local command execution.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range and you install a package whose source is served from an untrusted Perforce repository.
Background info
composer/composer is vulnerable to OS Command Injection in versions 1.0.0 - 2.2.29 and 2.3.0 - 2.10.2.
How to fix this
Upgrade the composer/composer library to the patch version.
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SOC 2Compliant
ISO 27001CompliantISO 42001Compliant
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