Upgrade com.puppycrawl.tools:checkstyle to version 8.18 or later ---------------------------------------------------------------- Key: MODCLUSTER-677 URL: https://issues.jboss.org/browse/MODCLUSTER-677 Project: mod_cluster Issue Type: Task Components: Core &amp; Container Integration (Java) Affects Versions: 2.0.0.Alpha1 Reporter: Radoslav Husar Assignee: Radoslav Husar Priority: Major 1 com.puppycrawl.tools:checkstyle vulnerability found in pom.xml 17 hours ago Remediation Upgrade com.puppycrawl.tools:checkstyle to version 8.18 or later. For example: <dependency> <groupId>com.puppycrawl.tools</groupId> <artifactId>checkstyle</artifactId> <version>[8.18,)</version> </dependency> Always verify the validity and compatibility of suggestions with your codebase. Details CVE-2019-9658 More information moderate severity Vulnerable versions: < 8.18 Patched version: 8.18 Checkstyle prior to 8.18 loads external DTDs by default, which can potentially lead to denial of service attacks or the leaking of confidential information.