CVE-2026-59569 Android ZCC VPN API method privilege escalation
An attacker can bypass Zscaler security controls on Android and ChromeOS via improper input validation in the Client Connector VPN API.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-59569?
CVE-2026-59569 is a high-severity vulnerability in Zscaler Client Connector, published on 14 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An improper input validation vulnerability in Zscaler Client Connector on Android and ChromeOS allows an attacker to potentially bypass Zscaler controls.
Weakness: CWE-20
Which versions are affected by CVE-2026-59569?
How do I fix CVE-2026-59569?
No fix has been published for CVE-2026-59569 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-59569 being exploited?
There is no known exploitation of CVE-2026-59569 in the wild and no public exploit code.
Sources
Also known as GHSA-4vcv-p436-xxwh.