ELA-1637-1 tomcat9 security update

denial of service

2026-02-07
Packagetomcat9
Version9.0.107-0+deb10u3 (buster)
Related CVEs CVE-2025-55752 CVE-2025-55754 CVE-2025-61795


Several security vulnerabilities have been found in Tomcat 9, a Java web server and servlet engine. The update corrects various flaws which can lead to a bypass of security constraints or a denial of service.

The regression update announced as ELA-1615-2 was incomplete. Some class files were still missing from jar files which are part of the libtomcat9-java binary package. In order to remedy this problem the following build-dependencies of tomcat9 have been upgraded to a new upstream release:



For Debian 10 buster, these problems have been fixed in version 9.0.107-0+deb10u3.

We recommend that you upgrade your tomcat9 packages.

Further information about Extended LTS security advisories can be found in the dedicated section of our website.