Log4Shell is a vulnerability in the Apache Log4j Java-based logging library. Log4j is a fast, flexible and reliable logging framework (APIS) written in Java Programming Language. Log4j 2(Apache Log4j 2.0–2.14.1) versions which is a very common logging library used by applications across the world. The open-source Apache Log4j library has over 400,000 downloads from its Github project, according to cybersecurity ...