Customer Security Advisory: PHP Remote Code Execution Vulnerabilities

Update timeline

1. investigating Oct 21, 2026, 02:44 PM UTC

   Akamai is aware of the recently published (CVE-2026-109618 and CVE-2026-109619) vulnerabilities and our teams are actively investigating its potential impact across our platform and infrastructure. As a part of ongoing mitigation efforts, some Quick Deploy apps, speed test pages, and parts of the website may be unavailable. If you are running a vulnerable version of PHP on a Linode instance, we recommend following guidance from the upstream vendor (PHP) and applying upstream patches as they become available. We will provide updates as additional information becomes available.

2. identified Oct 21, 2026, 05:41 PM UTC

   Updated Guidance after assessment: Akamai is aware of the recently published (CVE-2026-109618 and CVE-2026-109619) vulnerabilities and our teams are actively investigating its potential impact across our platform and infrastructure. As a part of ongoing mitigation efforts, our Cloud Infrastructure Speed Tests will be unavailable. If you are running a vulnerable version of PHP on a Linode instance, we recommend following guidance from the upstream vendor (PHP) and applying upstream patches as they become available. We will provide updates as additional information becomes available.