CVE-2026-59564: Authentication bypass between ZCC and client connector portal
Zscaler · Client Connector
Vendor fix available · Affected: Zscaler Client Connector · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 45% of scored CVEs
DescriptionCVE.org
An authentication bypass issue exists in communications between affected versions of the Zscaler Client Connector and the Zscaler Client Connector Portal.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Zscaler · Client Connectorbefore Windows: 4.6.0.457, 4.7.0.317, 4.8.0.232, 4.9.0.372; before MacOS: 4.5.2.312, 4.7.0.292, 4.8.0.191; before iOS: 4.5.1; before Android: 4.2; before ChromeOS: 4.2; before Linux: 3.7.2.64, 4.2.1.64
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- Zscaler
- Published
- August 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-59564 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.