Checked fact 236123 Oct 2026Safety and security

The advisory says a failed allocation can leave request memory invalid when memory is reachable before it is fully initialized, and request shutdown may then read or branch on it.

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The exact words it rests on

In some contexts, request memory is temporarily reachable before it is fully initialized. If any allocation fails at that point, PHP does not properly account for the early exit and leaves the request memory in an invalid state. ... The request shutdown procedure may then read or branch on it.

What the source said when we opened it, on 23 Oct 2026.

The source

GHSA-w8hw-w9fx-j79w: RCE via OOM corruption (CVE-2026-109618)
PHP project (php-src security advisories) · 2026-10-21

Open the source archived copy

Checked

Checked by the notis newsroom on 23 Oct 2026, against the source above.

In the story

PHP patches two critical remote code execution flaws 23 Oct 2026

Cite this fact

Short permanent address

In a sentence

“The advisory says a failed allocation can leave request memory invalid when memory is reachable before it is fully initialized, and request shutdown may then read or branch on it.” ai notis, checked 23 Oct 2026. Source: GHSA-w8hw-w9fx-j79w: RCE via OOM corruption (CVE-2026-109618) (PHP project (php-src security advisories)). https://ainotis.com/c/2361

As a reference (APA style)

ai notis. (2026, October 23). The advisory says a failed allocation can leave request memory invalid when memory is reachable before it is fully initialized, and request shutdown may then read or branch on it [Checked claim 2361]. ai notis. https://ainotis.com/c/2361

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