The set of vulnerabilities is dubbed PHP2Shell and disclosure is scheduled for 14:00 UTC with attacks expected to follow soon after.
It is adviced to take offline every non-vital services until the patch has been installed (or the Docker image has been updated with a patched version of PHP)
Update: fix is out https://www.php.net/archive/2026.php#2026-10-21-5
Using a tool like Shodan, I can quickly get a list of addresses that have a specific version of PHP behind it.
It sounds like this is a cvss 9.0 or higher for PHP which is bonkers because PHP is such a huge amount of the internet.
My guess is releasing these CVEs the normal way could have catastrophic consequences. They’re giving stsadmins a heads up so there is less of a scramble when sysadmins read “hey fix your shit it’s totally vulnerable” before they have their coffee.
Like as a sysadmin, this is a great way for them to do this.
I will in 10 mins alert my team that the whole site has to come offline for a period today. I don’t need to take it offline in an emergency and tell my boss to send out a memo.
I wonder how many docker containers keep their own version of PHP…