On December 9, 2021, security researchers announced a zero-day vulnerability, CVE-2021-44228, impacting the widely-used Apache Log4j Java-based logging library. Known as Log4Shell, the vulnerability can allow unauthenticated remote code execution and access to servers.

https://gist.github.com/SwitHak/b66db3a06c2955a9cb71a8718970c592