Description
The CORS Filter in Apache Tomcat 9.0.0.M1 to 9.0.0.M21, 8.5.0 to 8.5.15, 8.0.0.RC1 to 8.0.44 and 7.0.41 to 7.0.78 did not add an HTTP Vary header indicating that the response varies depending on Origin. This permitted client and server side cache poisoning in some circumstances.
Remediation
References
Related Vulnerabilities
Apache Tomcat Incorrect Default Permissions Vulnerability (CVE-2020-8022)
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WordPress Plugin CM Download Manager Code Injection (2.0.3)
Jboss EAP Deserialization of Untrusted Data Vulnerability (CVE-2019-14893)