High Threat Security Alert (A26-10-36): Multiple Vulnerabilities in PHP

Description:

PHP will release security updates to address multiple vulnerabilities in PHP. The detailed information about the vulnerabilities can be found at:
https://www.php.net/archive/2026.php#2026-10-20-1

Reports indicate that the multiple vulnerabilities (CVE-2026-109618, CVE-2026-109619) are at high risk of exploitation. Patches for vulnerabilities are not yet available but they are scheduled for release this Wednesday, 21 October 2026 at 10:00 PM HKT. System administrators are advised to conduct an inventory check on PHP frameworks and applications and prepare to apply the latest patches once available to mitigate the potential risk of exploitation.

Affected Systems:

• PHP (affected versions are yet to be confirmed by PHP)

Impact:

Successful exploitation of the vulnerabilities could lead to remote code execution on an affected system.

Recommendation:

Patches for the affected systems are not yet available. System administrators are recommended to conduct an inventory check on PHP frameworks and applications currently in use and prepare to apply the latest patches once available to mitigate the potential risk of exploitation.

More Information:

• https://www.php.net/archive/2026.php#2026-10-20-1
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-109618 (to CVE-2026-109619)