CVE-2018-1327: Apache Struts

High severity, CVSS 7.5. EPSS: 8.6% chance of exploitation in the next 30 days.

The Apache Struts REST Plugin is using XStream library which is vulnerable and allow perform a DoS attack when using a malicious request with specially crafted XML payload. Upgrade to the Apache Struts version 2.5.16 and switch to an optional Jackson XML handler as described here http://struts.apache.org/plugins/rest/#custom-contenttypehandlers. Another option is to implement a custom XML handler based on the Jackson XML handler from the Apache Struts 2.5.16.

Affected products

• Apache Struts: from 2.1.1, up to and including 2.5.14.1

Published 2018-03-27. Last modified 2026-06-17.