The bug pertains to something called log4j, and one way that software engineers can protect websites from it is to upgrade to the latest version of log4j (2.15.0).

Apache can’t seem to catch a break with Java-based logging utility Log4j, as a third major vulnerability has now been discovered.

A critical vulnerability has been discovered in Apache Log4j 2, an open source Java package used to enable logging in many popular applications, and it can be exploited to enable remote code ...

Threat actors now exploit the critical Apache Log4j vulnerability named Log4Shell to infect vulnerable devices with the notorious Dridex banking trojan or Meterpreter.

Suspicion of a DoS bug affecting log4j 2.16.0 arose on Apache's JIRA project about three days ago, shortly after 2.15.0 was found to be vulnerable to a minor DoS vulnerability (CVE-2021-45046).

A second vulnerability involving Apache Log4j was found on Tuesday after cybersecurity experts spent days attempting to patch or mitigate CVE-2021-44228.