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Free PDF checklist

PHP Emergency Update Checklist

What to ask your host, what to write down, and how to check your site after the October 21, 2026 PHP fixes.

Download the free checklist (PDF)What's inside
  • Free, no signup
  • 3-page PDF
  • About 15 minutes
  • Sources checked Oct 21, 2026
Page 1 of the PDF: the title, what happened, the four fixed PHP versions and the first five checks.
Page 2 of the PDF: the sixth check, the copy-and-paste message for your hosting provider and the evidence record table.
Page 3 of the PDF: what to do if it can't be fixed today, the official sources and when the checklist was checked.

Actual pages from the 3-page PDF

What you get

Every preview below is cropped from the actual PDF you download. Tap one to read it full size.

A message to send your host

Copy, paste and send. Five questions about the PHP that actually serves your website.

Real excerpt from the PDF
Excerpt from the PDF: the copy-and-paste message for your hosting provider, with five numbered questions about CVE-2026-109618 and CVE-2026-109619.

Six checks to do now

Find your PHP sites, ask your host, write down the evidence, update, check your site still works, and keep watching.

Real excerpt from the PDF
Excerpt from the PDF: six checkbox items, from finding every site and app you run on PHP to keeping watch for a few days.

Your evidence record

One table for the PHP version and vendor build, the advisory, when it was applied and how you checked your site.

Real excerpt from the PDF
Excerpt from the PDF: the evidence record table with rows for website, hosting provider, PHP version and vendor build, advisory, both CVEs fixed, date applied, restart, site check and anything unusual.

If it can't be fixed today, plus official sources

What PHP and the EU and UK cyber agencies advise, and links to the advisories the checklist was checked against.

Real excerpt from the PDF
Excerpt from the PDF: the 'If you can't get it fixed today' guidance and the list of official sources, including php.net, GitHub advisories, ENISA, the UK NCSC, Ubuntu, Cloudflare and the researchers' page.

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Download the free checklist (PDF)Watch the full story

Free, no signup. General information, not a security audit. Always follow your host's and vendor's latest advice.

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