A recent update to Fastjson, version 1.2.83, addresses a significant security vulnerability identified as CVE-2022-25845, which could potentially allow remote code execution by bypassing the "AutoTypeCheck" mechanism. This vulnerability is particularly concerning due to its presence in numerous Java applications that utilize Fastjson versions 1.2.80 or earlier, especially when user-controlled data is parsed without specifying a class. Despite its high CVSS score of 8.1, the exploit's real-world impact is limited as it requires specific conditions, such as the presence of a Java class extending the Throwable class, to be effective. A proof-of-concept demonstrates how such an exploit could theoretically occur, but finding existing, exploitable Java "gadget" classes in real-world applications is rare. To mitigate the risk, upgrading to Fastjson 1.2.83 or enabling "Safe Mode" is recommended. JFrog has confirmed that its DevOps platform is not impacted by this vulnerability, and it offers tools like JFrog Xray for detecting and resolving similar security issues.