CVE-2020-12395 is a vulnerability that affects Apache Tomcat, a popular open-source web server and servlet container. The flaw was first reported in February 2020 by an independent security researcher. The vulnerability allows an attacker to bypass the security constraints configured in the application and gain unauthorized access to sensitive resources.
When exploited, this vulnerability can allow attackers to read or modify sensitive data, execute arbitrary code on the affected system, or launch denial-of-service attacks. The vulnerability affects all versions of Apache Tomcat up to and including version 9.0.31, although newer versions have since been released that include patches to address the issue.
In response to the vulnerability, the Apache Software Foundation released a security update that addressed the issue. However, it is important for organizations that use Apache Tomcat to ensure they have applied the updated patch to their systems. Failure to do so could leave their systems vulnerable to attack, potentially exposing sensitive information and compromising the integrity of their systems.