InfoSec News Nuggets 04/21/2026
Actively exploited Apache ActiveMQ flaw impacts 6,400 servers Shadowserver says more than 6,400 internet-exposed Apache ActiveMQ servers are vulnerable to ongoing attacks exploiting CVE-2026-34197, a code injection flaw patched on March 30 in ActiveMQ Classic 6.2.3 and 5.19.4. Because ActiveMQ is widely used for asynchronous messaging between Java applications, this is a practical patch-now issue for teams with exposed or business-critical deployments. Serial-to-IP Converter Flaws Expose OT and Healthcare Systems to Hacking Forescout disclosed 20…