Cyber Security News for August 31 2026 - Daily DefSec Brief

Daily DefSec Brief · Aug 31, 2026 · 5m · transcript

1. PaperCut ships a second emergency patch after attackers chain two zero-days — CVE-2026-82078, CVE-2026-81578 — SecurityWeek — https://www.securityweek.com/more-details-emerge-on-exploited-papercut-vulnerabilities/ 2. Ruby on Rails file-read flaw is being exploited for remote code execution — CVE-2026-66066 — SecurityWeek — https://www.securityweek.com/critical-ruby-on-rails-vulnerability-in-attackers-crosshairs/ 3. Self-spreading worm planted in an npm package with 150,000 weekly downloads — Cyber Security News — https://cybersecuritynews.com/popular-npm-package/ 4. China-linked Fire Ant…