{"api_version":"1","generated_at":"2026-09-03T03:55:29+00:00","cve":"CVE-2026-84361","urls":{"html":"https://cve.report/CVE-2026-84361","api":"https://cve.report/api/cve/CVE-2026-84361.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-84361","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-84361"},"summary":{"title":"Composer: Perforce source URL permits P4PORT `rsh:` command execution","description":"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. 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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.","Type":"Description","Title":"Composer: Perforce source URL permits P4PORT `rsh:` command exec"}]}}}