Ubuntu PHP Updates Fix Remote Code Execution in Multiple Releases

Running self-managed GitLab? Critical flaws could allow server code execution. Check the fixes. ×

PHP could be made to crash or run programs if it received specially crafted network traffic. Software Description: - php8.5: HTML-embedded scripting language interpreter - php8.3: HTML-embedded scripting language interpreter - php8.1: HTML-embedded scripting language interpreter Details: It was discovered that PHP incorrectly handled out-of-memory conditions while processing requests. A remote attacker could use this issue to execute arbitrary code. (CVE-2026-109618) It was discovered that PHP incorrectly managed internal request state across worker reuse. A remote attacker could use this issue to execute arbitrary code. (CVE-2026-109619)

PHP could be made to crash or run programs if it received specially

crafted network traffic.

Software Description:

- php8.5: HTML-embedded scripting language interpreter

- php8.3: HTML-embedded scripting language interpreter

- php8.1: HTML-embedded scripting language interpreter

It was discovered that PHP incorrectly handled out-of-memory conditions

while processing requests. A remote attacker could use this issue to

execute arbitrary code. (CVE-2026-109618)

It was discovered that PHP incorrectly managed internal request state

across worker reuse. A remote attacker could use this issue to execute

arbitrary code. (CVE-2026-109619)

The problem can be corrected by updating your system to the following package versions: Ubuntu 26.10 libapache2-mod-php8.5 8.5.9-0ubuntu2.1 php8.5-cgi 8.5.9-0ubuntu2.1 php8.5-cli 8.5.9-0ubuntu2.1 php8.5-fpm 8.5.9-0ubuntu2.1 Ubuntu 26.04 LTS libapache2-mod-php8.5 8.5.4-0ubuntu1.5 php8.5-cgi 8.5.4-0ubuntu1.5 php8.5-cli 8.5.4-0ubuntu1.5 php8.5-fpm 8.5.4-0ubuntu1.5 Ubuntu 24.04 LTS libapache2-mod-php8.3 8.3.6-0ubuntu0.24.04.13 php8.3-cgi 8.3.6-0ubuntu0.24.04.13 php8.3-cli 8.3.6-0ubuntu0.24.04.13 php8.3-fpm 8.3.6-0ubuntu0.24.04.13 Ubuntu 22.04 LTS libapache2-mod-php8.1 8.1.2-1ubuntu2.28 php8.1-cgi 8.1.2-1ubuntu2.28 php8.1-cli 8.1.2-1ubuntu2.28 php8.1-fpm 8.1.2-1ubuntu2.28 In general, a standard system update will make all the necessary changes.

CVE-2026-109618, CVE-2026-109619

Ubuntu Security Notice USN-8948-1

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Linux Security - Your source for Top Linux News, Advisories, HOWTOs and Feature Releases