{"id":"CVE-2026-59564","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-59564","summary":"An authentication bypass issue exists in communications between affected versions of the Zscaler Client Connector and the Zscaler Client Connector Portal.","details":"An authentication bypass issue exists in communications between affected versions of the Zscaler Client Connector and the Zscaler Client Connector Portal.","published":"2026-08-24T14:16:55.690","modified":"2026-08-24T14:16:55.690","cvss":{"score":9.1,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://help.zscaler.com/zscaler-client-connector/client-connector-app-release-summary-2026"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-08-24T14:16:55.690"}}