A checkstyle security update has been released for Debian GNU/Linux 8 LTS.

Package : checkstyle
Version : 5.9-1+deb8u2
CVE ID : CVE-2019-10782

Security researchers from Snyk discovered that the fix for CVE-2019-9658
was incomplete. Checkstyle, a development tool to help programmers write
Java code that adheres to a coding standard, was still vulnerable to XML
External Entity (XXE) injection.

For Debian 8 "Jessie", this problem has been fixed in version
5.9-1+deb8u2.

We recommend that you upgrade your checkstyle packages.

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS