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Important Upgrade Advisory: Mobius 12.6.2 is now available—Apache Tomcat 11.0.2 required

  • October 6, 2026
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Theresa Parker

As a follow-up to Dan Lam’s post in July entitled, “ContentEdge (formerly Mobius) – New Release...”, we wish to advise that Mobius 12.6.2 is now available.

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Customers planning an upgrade to a current version of Mobius should note that the Apache Tomcat version used by Mobius components has been updated to address a security vulnerability.

Starting with version 12.6.2, the embedded Apache Tomcat instance that’s included with Mobius Server has been upgraded to Apache Tomcat 11.0.25 to remediate a security vulnerability affecting the previously shipped Tomcat version.

Customers who deploy Mobius View/Rocket Content Explorer to their own Apache Tomcat environment must also upgrade their Apache Tomcat installation to version 11.0.25 before deploying this release. Deployments on earlier Tomcat versions might remain exposed to the security vulnerability addressed by this update.

  • Note: This requirement applies only to customer-managed Tomcat environments hosting Mobius View/ Rocket Content Explorer. No additional action is required for the Tomcat instance embedded in Mobius Server beyond upgrading to this release.

The Rocket Development Team continues to evolve to respond at an increasingly rapid pace to address vulnerabilities to ensure you remain compliant with your organization’s security requirements.

Upgrade and Security Notice

Rocket strongly encourages all users to upgrade to the most current version of Rocket Mobius in combination with the latest Patch Updates to ensure continued compatibility, performance, and support.

The most recent release provides the latest fixes and enhancements to ensure that known critical issues, security updates, and third-party components are updated. Applications built with earlier versions may no longer operate reliably or in accordance with current compliance standards.

While prior versions may still function in some environments, Rocket Software can no longer guarantee full support or legal defensibility for deployments that remain on outdated software.

To avoid potential disruptions, compliance issues, or exposure to unsupported third-party components, we strongly recommend updating to the latest version.

Security and Maintenance Updates

Rocket Mobius releases (Service Builds and major versions) may include security-related fixes, maintenance improvements, and updates to third-party components and libraries. Customers should evaluate and apply updates in accordance with their organization's patch management and security policies. For information about security advisories, alerts, and notifications, visit the Notifications page on the Rocket Customer Community portal. To subscribe to product updates, manage your email preferences from the menu under your name in the upper-right corner.

Other resources:

If you desire further guidance, please contact Rocket Technical Support using one of the methods listed below. Rocket Support Analysts are delighted to partner with you to confirm details regarding the environment proposed for your upgrade, review customizations previously made to your Mobius configuration, or answer any other questions.

  • Contact Rocket Customer Support via the toll-free number: +1.855.577.4323
  • Send an e-mail to Customer Support at support@rocketsoftware.com
  • Submit a case on the Rocket Software Support Portal. Navigate to Rocket Customer Support via the following URL: https://www.rocketsoftware.com/support and select “Submit a Case.” Sign in with your Rocket Community credentials.