CVE-2026-109618 and CVE-2026-109619, publicly referred to as PHP2Shell, are critical vulnerabilities in PHP that can allow unauthenticated remote code execution. PHP released security updates on October 21, 2026. The project identifies PHP installations serving web requests as at risk, with the highest risk associated with Apache mod_php.
CVE-2026-109618 / CVE-2026-109619 | PHP Core Remote Code Execution Vulnerabilities (PHP2Shell)
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