SecurityWeek

Unpatched Fastjson Vulnerability Exploited in Attacks

Hackers are exploiting a critical, unpatched remote code execution (RCE) vulnerability in Fastjson without authentication.

Hackers target US firms in FastJson RCE zero-day attacks

Hackers are actively exploiting a vulnerability in the FastJson open-source Java library, allowing remote code execution ...

Fastjson Zero-Day Exposes Java Servers To Remote Attacks Arabian Post

Fastjson Zero-Day Exposes Java Servers To Remote Attacks Arabian Post. clearfix>Attackers are exploiting a critical vulnerability in Alibaba's Fastjson library that can allow unauthenticated remote ...
The Hacker News

Fastjson 1.x RCE Vulnerability Targeted in Attacks With No Patched Available

Fastjson 1.x flaw CVE-2026-16723 can trigger unauthenticated RCE in Spring Boot fat-JAR apps, with attacks reported and no ...
Security Boulevard

External input cannot be trusted: input validation and encoding strategies

Any data that enters your system from outside a trust boundary should be treated as untrusted until proven otherwise. That includes form fields, API payloads, file uploads, headers, cookies, queue ...