CVE-2010-2227: Apache Tomcat 5.5.0 through 5.5.29, 6.0.0 through 6.0.27, and 7.0.0 beta does not properly handle an invali...

Security readout for executives and security teams

CVE-2010-2227 is an Apache Tomcat flaw where a malformed Transfer-Encoding header can disrupt service or expose sensitive data. The business risk is highest for legacy public Tomcat servers still running affected 5.5, 6.0, or 7.0 beta versions. Exposure is likely limited to old or vendor-packaged Tomcat deployments, especially internet-facing Java web applications. Modern Tomcat versions are outside the listed affected ranges, but embedded Tomcat in legacy appliances or applications should be checked. Treat this as a high-priority legacy exposure issue if Tomcat is public-facing or supports critical services. The vulnerability can affect availability and confidentiality, but urgency depends on whether affected versions remain deployed. Mitigation focus: Identify all Tomcat instances, including embedded and appliance-managed deployments.; Upgrade or patch Tomcat according to Apache or operating-system vendor advisories.; Prioritize internet-facing Tomcat servers in the affected version ranges..

Prepared

Jun 28, 2026, 02:01 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.