A critical security vulnerability in NGINX, the web server software underpinning more than 30% of all websites globally, has been confirmed as actively exploited in the wild, less than a week after its public disclosure. The flaw, tracked as CVE-2026-42945 and dubbed ‘NGINX Rift’, carries a severity score of 9.8 out of 10. It affects The post Critical flaw in software powering a third of the internet is already being exploited free checker now available appeared first on IT Security Guru.
First seen on itsecurityguru.org
Jump to article: www.itsecurityguru.org/2026/05/20/critical-flaw-in-software-powering-a-third-of-the-internet-is-already-being-exploited-free-checker-now-available
![]()

