Critical PHP vulnerabilities spark global security scramble

Critical PHP code flaws trigger worldwide website shutdowns as hackers exploit vulnerabilities.

Oct 21, 2026

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Critical PHP vulnerabilities spark global security scramble

Critical PHP code flaws trigger worldwide website shutdowns as hackers exploit vulnerabilities.

In brief

Critical PHP code flaws trigger worldwide website shutdowns as hackers exploit vulnerabilities. Critical PHP vulnerabilities force 55 million websites to temporarily go offline to prevent hacks. Originally reported by NBC Bay Area.

Critical PHP flaws discovered

Critical vulnerabilities in PHP code used by 69% of websites spark global security concerns.

PHP security team releases patches

PHP security team released patches at 10 a.m. et to fix critical vulnerabilities.

Major websites temporarily offline

Major websites temporarily offline

Wikipedia, Pinboard, 4chan, and Something Awful went offline to apply security patches.

Japanese sites also shut down

Japanese daycare centers and video game sites temporarily closed for security updates.

55 million websites use PHP

Nearly 55 million web properties run php according to censys data.

OpenAI discovered vulnerability

OpenAI found the vulnerability through ai models and warned php before hackers exploited it.

Chainguard breaks patch embargo

Chainguard shared php patch details six hours early breaking security embargo agreement.

Global security agencies warn

U.s. nsa, eu cert, and uk ncs recommend temporary shutdowns for php sites until patched.

Here's the gist

Critical PHP vulnerabilities force 55 million websites to temporarily go offline to prevent hacks.

Read the original on NBC Bay Area

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