---
title: "Security update: PHP vulnerabilities CVE-2026-109618 and CVE-2026-109619"
slug: "security-update-php-vulnerabilities-cve-2026-109618-and-cve-2026-109619"
updated: 2026-10-22T14:21:07Z
published: 2026-10-22T14:21:07Z
canonical: "help.8x8.com/security-update-php-vulnerabilities-cve-2026-109618-and-cve-2026-109619"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://help.8x8.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Security update: PHP vulnerabilities CVE-2026-109618 and CVE-2026-109619

## Overview

Two critical vulnerabilities in PHP, an open-source programming language many websites and web applications run on, were disclosed October 21, 2026. Some 8x8 interfaces use PHP, and we are applying a protective configuration change to them now.

Further information about this can be found in the [8x8 blog](https://www.8x8.com/blog/php-vulnerability-response).

##