PHP issues security releases for 8.2 through 8.5 fixing two critical RCE flaws
On 21 October 2026, PHP released 8.5.12, 8.4.27, 8.3.36 and 8.2.35 as security updates addressing two critical remote-code-execution vulnerabilities, CVE-2026-109618 and CVE-2026-109619. PHP 8.1 and older branches received no official fixed release, and 8.1 reached end of life at the close of 2025. Rapid7 expects a viable exploit to be published soon and recommends emergency updates. Amazon Threat Intelligence reportedly observed exploitation attempts on 17 and 21 October, though it is unclear whether they would have succeeded. Administrators are advised to verify the PHP version serving their sites, since PHP-FPM must be restarted after updating and distribution packages may carry fixes without changing version numbers.
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