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Critical PHP Composer Vulnerabilities Allow Remote Command Execution

Critical PHP Composer Vulnerabilities Allow Remote Command Execution

First seen 15 Apr 2026, 09:14 UTC • •

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ThreatCluster AI
ThreatCluster •April 16, 2026 at 06:45 UTC
  • •Two high-severity vulnerabilities in PHP Composer allow remote command execution.
  • •Attackers can exploit these flaws via malicious repository configurations.
  • •Affected systems include those using PHP Composer with Perforce VCS.

Two high-severity vulnerabilities in PHP Composer, a dependency manager for PHP, have been identified, allowing attackers to execute arbitrary commands. These flaws can be exploited through malicious repository configurations and crafted inputs, particularly affecting Perforce VCS. The vulnerabilities pose a significant risk to developers using PHP Composer to manage their project libraries. The exact CVEs for these vulnerabilities have not been disclosed yet. The vulnerabilities are categorized as high-severity due to their potential for remote command execution. Organizations using PHP Composer are advised to review their configurations and inputs to mitigate risks. The current status of these vulnerabilities is under investigation, with no patches mentioned as of now.

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Updated 187d ago How this analysis works

Timeline

2026-04-14
The Hacker News reports on PHP Composer vulnerabilities.
2026-04-15
Security Affairs publishes details on the vulnerabilities.

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