tomcat-catalina is vulnerable to security constraint bypass. Security constraints are only applied after a servlet has already been loaded. Depending on the order in which the servlets were loaded, its possible that some of the constraints were not applied at all. Leveraging this, users may have access to exposed resources which they would not ordinarily have access to.
tomcat.apache.org/security-7.html#Fixed_in_Apache_Tomcat_7.0.85
tomcat.apache.org/security-8.html#Fixed_in_Apache_Tomcat_8.0.50
tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.5
www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
www.securityfocus.com/bid/103144
www.securitytracker.com/id/1040428
access.redhat.com/errata/RHSA-2018:0465
access.redhat.com/errata/RHSA-2018:0466
access.redhat.com/errata/RHSA-2018:1320
access.redhat.com/errata/RHSA-2018:2939
access.redhat.com/errata/RHSA-2019:2205
lists.apache.org/thread.html/1dd0a59c1295cc08ce4c9e7edae5ad2268acc9ba55adcefa0532e5ba@%3Cdev.tomcat.apache.org%3E
lists.apache.org/thread.html/343558d982879bf88ec20dbf707f8c11255f8e219e81d45c4f8d0551@%3Cdev.tomcat.apache.org%3E
lists.apache.org/thread.html/388a323769f1dff84c9ec905455aa73fbcb20338e3c7eb131457f708@%3Cdev.tomcat.apache.org%3E
lists.apache.org/thread.html/3d19773b4cf0377db62d1e9328bf9160bf1819f04f988315086931d7@%3Cdev.tomcat.apache.org%3E
lists.apache.org/thread.html/5c0e00fd31efc11e147bf99d0f03c00a734447d3b131ab0818644cdb@%3Cdev.tomcat.apache.org%3E
lists.apache.org/thread.html/6af47120905aa7d8fe12f42e8ff2284fb338ba141d3b77b8c7cb61b3@%3Cdev.tomcat.apache.org%3E
lists.apache.org/thread.html/845312a10aabbe2c499fca94003881d2c79fc993d85f34c1f5c77424@%3Cdev.tomcat.apache.org%3E
lists.apache.org/thread.html/88855876c33f2f9c532ffb75bfee570ccf0b17ffa77493745af9a17a@%3Cdev.tomcat.apache.org%3E
lists.apache.org/thread.html/b5e3f51d28cd5d9b1809f56594f2cf63dcd6a90429e16ea9f83bbedc@%3Cdev.tomcat.apache.org%3E
lists.apache.org/thread.html/d3354bb0a4eda4acc0a66f3eb24a213fdb75d12c7d16060b23e65781@%3Cannounce.tomcat.apache.org%3E
lists.apache.org/thread.html/e85e83e9954f169bbb77b44baae5a33d8de878df557bb32b7f793661@%3Cdev.tomcat.apache.org%3E
lists.apache.org/thread.html/eb6efa8d59c45a7a9eff94c4b925467d3b3fec8ba7697f3daa314b04@%3Cdev.tomcat.apache.org%3E
lists.debian.org/debian-lts-announce/2018/03/msg00004.html
lists.debian.org/debian-lts-announce/2018/06/msg00008.html
lists.debian.org/debian-lts-announce/2018/07/msg00044.html
security.netapp.com/advisory/ntap-20180706-0001/
usn.ubuntu.com/3665-1/
www.debian.org/security/2018/dsa-4281
www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html