CVE Watch1 sept 2026

CVE-2026-84361

Composer is a dependency Manager for the PHP language. From 1.0 until 2.2.30 and 2.10.3, a malicious dependency package from a custom Compos

CVSS

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Sin CVSS

EPSS

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KEV

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Exploit Today

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0-100

Publicado: 1 sept 2026 · Última mod.: 1 sept 2026 · CWE-78

EPSS · 30d

Sin historial EPSS suficiente todavía.

Descripción técnica

Composer is a dependency Manager for the PHP language. From 1.0 until 2.2.30 and 2.10.3, a malicious dependency package from a custom Composer repository or an untrusted composer.lock file could set source.type to perforce and source.url to an rsh: or jsh: P4PORT value. When the Perforce p4 client was installed and Composer installed the package from source through composer install or composer update, including --prefer-source, Composer\Util\Perforce passed the address to p4 without validation, causing p4 to run a local command with the privileges of the user or CI account. Packagist.org does not permit Perforce source metadata. This issue is fixed in versions 2.2.30 and 2.10.3.

Referencias oficiales

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