CVE-2026-59564

An authentication bypass issue exists in communications between affected versions of the Zscaler Client Connector and the Zscaler Client Connector Portal.

The risk includes potential unauthorized access to the portal or manipulation of communication, potentially leading to compromise of client configuration integrity and potential endpoint takeover.

It is recommended to update Zscaler Client Connector to a version that includes a fix for this issue, and to verify the integrity of communication with the portal.