Rapid7 says of the validated FPM session path: "The validated FPM session path requires a suitable application operation to leave state behind after successful startup, followed by a fatal error and another request that consumes the stale state through session upload progress. Both requests must reach the same worker."

The exact words it rests on

The validated FPM session path requires a suitable application operation to leave state behind after successful startup, followed by a fatal error and another request that consumes the stale state through session upload progress. Both requests must reach the same worker.

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

The source

CVE-2026-109618 and CVE-2026-109619: Critical unauthenticated remote code execution in PHP
Rapid7 · 2026-10-21

Open the sourcearchived 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