CVE-2026-84361-poc

CVE-2026-84361: Composer Perforce P4PORT Command Execution PoC Run with Docker Docker Compose provides an isolated image containing vulnerable Composer 2.10.2 and the Perforce p4 client. At runtime it has no network, a read-only root filesystem, no Linux capabilities, and writable tmpfs mounts on...

BIT-COMPOSER-2026-84361 Composer: Perforce source URL permits P4PORT `rsh:` command execution

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 clien...

PT-2026-86736

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 clien...

composer: Composer: Arbitrary code execution via malicious Perforce source URL

A flaw was found in Composer. A malicious dependency package from a custom Composer repository or an untrusted composer.lock file could exploit a vulnerability in how Composer handles Perforce source URLs. By setting source.type to perforce and source.url to an rsh: or jsh: P4PORT value, an...

Linux Distros Unpatched Vulnerability : CVE-2026-84361

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

Exploit for CVE-2026-84361

CVE-2026-84361: Composer’s P4PORT command execution PoC Engl...

DEBIAN-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 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 clien...

CVE-2026-84361 Composer: Perforce source URL permits P4PORT `rsh:` command execution

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 clien...

CVE-2026-84361

Composer (PHP dependency manager) versions 1.0 through 2.2.30 and 2.10.3 are affected by a vulnerability in Composer\Util\Perforce . A malicious dependency package from a custom Composer repository or untrusted composer.lock file could set source.type to perforce and source.url to an rsh: or jsh:...

CVE-2026-84361 Composer: Perforce source URL permits P4PORT `rsh:` command execution

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 clien...

CVE-2026-84361 Composer: Perforce source URL permits P4PORT `rsh:` command execution

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 clien...

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 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 clien...

PT-2026-84464

Name of the Vulnerable Software and Affected Versions Composer versions 1.0 through 2.2.29 Composer versions 2.10.0 through 2.10.2 Description Composer, a dependency manager for PHP, fails to validate the source.url when source.type is set to perforce. A malicious package from a custom repository...