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fastjson2

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Docker labs + defensive scanner for fastjson remote-class-load RCE. fastjson 1.2.66-1.2.83: @jsontype resource probe (CVE-2026-16723). fastjson2 2.0.57: attacker @type reaches loadClass with autoType DISABLED via polymorphic types (@jsontype(seeAlso) / Jackson @JsonSubTypes). Marker-only payloads; safeMode + JDK17 controls.

  • Updated Jul 27, 2026
  • Python

fastjson vulnerability scanner - detect fastjson in JARs and Spring Boot fat-JARs, check exposure to CVE-2026-16723, and verify whether you already run the official patch 1.2.84. Zero-dependency offline CLI. fastjson 漏洞检测与排查工具:一条命令扫描依赖,支持 fat-JAR 与 shaded 依赖,并判定是否已升到官方补丁版本 1.2.84。

  • Updated Sep 10, 2026
  • Java

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