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Developer analyzing Spring Boot code and JSON payloads while investigating the Fastjson 1.x RCE vulnerability in a data

Fastjson 1.x RCE Vulnerability Targeted as Attackers Exploit Spring Boot Apps

A critical unauthenticated remote code execution flaw in Fastjson 1.x is being actively exploited against Spring Boot applications, with no official patch available for the legacy library line.

Editorial illustration of a headless browser window on a monitor with glowing network lines representing hidden

Chaos Ransomware and msaRAT: How Attackers Hide C2 Traffic in Headless Browsers

A new analysis shows the Chaos ransomware group routing command-and-control traffic through headless Chrome and Edge using a Rust implant called msaRAT, raising the bar for defenders.