Session Fixation Affecting org.apache.tomcat:tomcat-catalina package, versions [9.0.0.M1, 9.0.30) [8.5.0,8.5.50) [,7.0.99)

  • Attack Complexity


  • User Interaction


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  • snyk-id


  • published

    20 Dec 2019

  • disclosed

    18 Dec 2019

  • credit

    William Marlow (IBM)

How to fix?

Upgrade org.apache.tomcat:tomcat-catalina to version 9.0.30, 8.5.50, 7.0.99 or higher.


org.apache.tomcat:tomcat-catalina is a Tomcat Servlet Engine Core Classes and Standard implementations.

Affected versions of this package are vulnerable to Session Fixation. When using FORM authentication there was a narrow window where an attacker could perform a session fixation attack. The window was considered too narrow for an exploit to be practical but, erring on the side of caution, this issue has been treated as a security vulnerability.