Tag: fastjson vulnerability

1 article

Network-reachable server terminal in a dimly lit data center environment.

Fastjson Vulnerability Exploited in Targeted Attacks

A critical vulnerability in Fastjson, tracked as CVE-2026-16723, has been exploited in targeted attacks, with a severity score of 9.0 out of 10. Attackers are actively probing for exposed paths in Fastjson 1.x, commonly used in Spring Boot deployments.

Analyst 207Jul 25, 2026