PHP Issues Second Windows Security Update in Five Days to Fix Brotli Code Execution Flaw

PHP has rebuilt its official Windows packages for PHP 8.2 through 8.5 to fix CVE-2026-111497, a flaw in the Brotli compression library that the packages include. The flaw can let an attacker corrupt memory and potentially run code. PHP says the flaw can be reached through the cURL extension when…

security

Sources

Vulnerabilities

Why this score
Signals contributing to the severity score
SignalPoints
cvss critical — 9.220
epss high20
widely deployed15