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Re: CVE-2026-109618: PHP 8.2–8.5 RCE via OOM corruption


From: Christian Fischer <christian.fischer () greenbone net>
Date: Fri, 23 Oct 2026 08:47:48 +0200

Only for references on this:

On 10/21/26 4:41 PM, Jakub Zelenka wrote:
Affected versions are PHP 8.2 before 8.2.35, PHP 8.3 before 8.3.36, PHP 8.4
before 8.4.27, and PHP 8.5 before 8.5.12.
The [1] blog post claims the following affected version range for CVE-2026-109618:

> The specific HashTable ordering behind CVE-2026-109618 was introduced
> by a performance optimization in October 2017 and first shipped in PHP
> 7.3.0 (December 2018).

[1] https://www.crowdstrike.com/en-us/blog/crowdstrike-protects-customers-from-php-rce-zero-days/

Regards


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