CVE-2026-6066 PUBLISHED

Unencrypted Client‑Server Communication in ConnectWise Automate™ Solution Center

Assigner: ConnectWise
Reserved: 10.04.2026 Published: 20.04.2026 Updated: 20.04.2026

ConnectWise has released a security update for ConnectWise Automate™ that addresses a behavior in the ConnectWise Automate Solution Center where certain client-to-server communications could occur without transport-layer encryption. This could allow network‑based interception of Solution Center traffic in Automate deployments. The issue has been resolved in Automate 2026.4 by enforcing secure communication for affected Solution Center connections.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
CVSS Score: 7.1

Product Status

Vendor ConnectWise
Product Automate
Versions Default: unaffected
  • Version All versions prior to 2026.4 is affected

Solutions

Remediation

Cloud: No action is required. 

On-Premise: Apply the 2026.4 release.

For instruction on updating to the newest release, please reference this doc: Automate Release Notes Version 2026 - ConnectWise https://docs.connectwise.com/ConnectWise_Automate_Documentation/100/Automate_Release_Notes_Version_2026

After applying the update, on-premises customers must ensure the following configurations are in place:

  • An SSL certificate is bound to the Solution Center on port 8484 to establish secure communication. Refer to the ConnectWise documentation for configuration steps: Solution Center Client and Service HTTPS Update - ConnectWise
  • In some environments, antivirus or endpoint protection products may interfere with the Automate patch installer or service behavior during upgrades. If issues are encountered during installation or startup, refer to the ConnectWise documentation for recommended antivirus exclusions: Automate Antivirus Exclusions for Windows https://docs.connectwise.com/ConnectWise_Automate_Documentation/060/040/010
  • Ensure that the LTShare has a minimum of 1 GB of free disk space prior to installation.

If you experience issues completing the update or required configuration steps, please contact ConnectWise Support for assistance.

References

Problem Types

  • CWE-319 Cleartext transmission of sensitive information CWE

Impacts

  • CAPEC-117 Interception