Your Linux System Is Under Threat: CUPS RCE Demands Immediate Patching

Linux security had a rough week — a CUPS remote code execution flaw can chain into full root access, the Chaos malware has evolved to target cloud servers, and stealthy PHP web shells are hiding inside HTTP cookies. Here is everything you need to know and exactly what to do about it. This week's roundup covers five critical Linux security stories: the CUPS RCE vulnerability chain (CVE-2026-34980 and CVE-2026-34990), the evolution of the Chaos botnet targeting misconfigured cloud deployments, cookie-controlled PHP web shells persisting via cron jobs, and important patches for Flatpak and OpenSSL. Whether you run a home server, a cloud instance, or just a desktop, at least one of these affects you directly. 🎬 CHAPTERS 00:00 Introduction & This Week's Threats 00:35 CUPS RCE Vulnerability Chain Explained 01:50 How to Fix the CUPS Vulnerability 02:19 Chaos Malware: From Routers to Cloud Servers 03:06 Cloud Security Hardening Steps 03:41 Cookie-Controlled PHP Web Shells 04:36 Auditing Your Server for Web Shell Persistence 04:51 Flatpak Sandbox Escape Patches 05:26 OpenSSL 3.6.2 Security Fixes 05:43 Summary & What to Do Now 🔗 RESOURCES & LINKS CVE-2026-34980 (CUPS RCE): https://nvd.nist.gov/vuln/detail/CVE-2026-34980 CVE-2026-34990 (CUPS Auth Bypass): https://nvd.nist.gov/vuln/detail/CVE-2026-34990 Flatpak 1.16.4 Release Notes: https://github.com/flatpak/flatpak/releases OpenSSL 3.6.2 Changelog: https://www.openssl.org/news/changelog.html LinuxSecurity.com Advisory Watch: https://linuxsecurity.com/newsletters/linux-advisory-watch 📱 FOLLOW TON DOES LINUX Website: https://tondoeslinux.com Facebook: https://facebook.com/tondoeslinux Twitter/X: @tondoeslinux 💬 JOIN THE DISCUSSION Have you already disabled CUPS on your servers, or do you still need it for printing? Let me know your setup in the comments — and if you've run into any of these vulnerabilities in the wild, I'd love to hear about it. 🔔 SUBSCRIBE for more Linux security news, distro reviews, tutorials, and in-depth analysis of the latest developments in the Linux world. #LinuxSecurity #Linux #CyberSecurity #OpenSource #InfoSec ======================================================= "Please like, comment, and subscribe to receive more videos of this kind." https://goo.gl/a9JwXB Use VidIQ for your channel: https://vidiq.com/TonDoesLinux Use the best VPN: https://surfshark.club/friend/FN3Sduq4 Learn Linux: https://www.youtube.com/playlist?list=PL_dJuuPxFr8H2tjU0vwWa4OQk0joraoYl Learn Arch: https://www.youtube.com/playlist?list=PL_dJuuPxFr8GXLBrgfIuqoIZYzEoifreM Website: www.tondoeslinux.com Like my Facebook page: https://www.facebook.com/tondoeslinux See me on Twitter https://twitter.com/tondoes #tondoeslinux #linuxtutorial #linux #apple #tech #shorts