CVE-2026-59564

An authentication bypass vulnerability exists in the communication between the Zscaler Client Connector and the Zscaler Client Connector Portal, allowing unauthorized access to sensitive resources. This critical flaw, with a CVSS score of 9.1, poses a significant risk to organizations using affected versions of the software, as it could lead to data breaches or unauthorized actions within their network. Organizations utilizing Zscaler Client Connector should prioritize immediate remediation to mitigate potential exploitation.