Home / mailings

PDF

[USN-8948-1] PHP vulnerabilities

Posted on 21 October 2026
Ubuntu Security

==========================================================================Ubuntu Security Notice USN-8948-1
October 21, 2026

php8.1, php8.3, php8.5 vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 26.10
- Ubuntu 26.04 LTS
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS

Summary:

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)

Update instructions:

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.

References:
https://ubuntu.com/security/notices/USN-8948-1
CVE-2026-109618, CVE-2026-109619

Package Information:
https://launchpad.net/ubuntu/+source/php8.5/8.5.9-0ubuntu2.1
https://launchpad.net/ubuntu/+source/php8.5/8.5.4-0ubuntu1.5
https://launchpad.net/ubuntu/+source/php8.3/8.3.6-0ubuntu0.24.04.13
https://launchpad.net/ubuntu/+source/php8.1/8.1.2-1ubuntu2.28

--===============2992249985254567059==Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: OpenPGP digital signature

 

TOP