USN-8948-1: PHP vulnerabilities

Publication date

21 October 2026

Overview

PHP could be made to crash or run programs if it received specially crafted network traffic.


Packages

  • php8.1 - HTML-embedded scripting language interpreter
  • php8.3 - HTML-embedded scripting language interpreter
  • php8.5 - 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)

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

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:


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