Checked fact 256723 Oct 2026Safety and security

Calif says of the hash-table bucket path: "This is RCE against arbitrary PHP scripts on Apache mod_php and PHP >= 7.3." This differs from or adds to other sources: A version floor of 7.3 for this path; PHP's advisories name no version floor.

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The exact words it rests on

Apache reaches HashTable teardown and interprets the stale bucket, while PHP-FPM discards it with the terminated worker. This is RCE against arbitrary PHP scripts on Apache mod_php and PHP >= 7.3.

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

The source

php2shell: a tale of two PHP remote vulnerabilities
Calif · 2026-10-21

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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

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“Calif says of the hash-table bucket path: "This is RCE against arbitrary PHP scripts on Apache mod_php and PHP >= 7.3." This differs from or adds to other sources: A version floor of 7.3 for this path; PHP's advisories name no version floor.” ai notis, checked 23 Oct 2026. Source: php2shell: a tale of two PHP remote vulnerabilities (Calif). https://ainotis.com/c/2567

As a reference (APA style)

ai notis. (2026, October 23). Calif says of the hash-table bucket path: "This is RCE against arbitrary PHP scripts on Apache mod_php and PHP >= 7.3." This differs from or adds to other sources: A version floor of 7.3 for this path; PHP's advisories name no version floor [Checked claim 2567]. ai notis. https://ainotis.com/c/2567

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