CVE-2026-59564Disclosure

LOWCVSS 9.1 · CRITICAL

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch affected systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

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

0.5/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-304

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Threat summary

  • Patch or workaround signal is available
  • 1 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • 1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-08-27: 1Patch / Workaround · 2026-08-27: 1Technical Details · 2026-08-27: 108-27
Signal classification1 categories
Disclosure
1100.0%
Referenced assets1 URL
Full discourse1 post
  • CCB Alert@CCBalert
    Disclosure

    Warning: Critical flaws in #Zscaler Client Connector! CVE-2026-59564 authentication bypass (CVSS: 9.1) and CVE-2026-59568 remote code execution #RCE (CVSS: 9.1). https://help.zscaler.com/zscaler-client-connector/client-connector-app-release-summary-2026 #Patch #Patch #Patch

    Post summary

    The post warns of critical authentication bypass and remote code execution vulnerabilities (CVE‑2026‑59564 and CVE‑2026‑59568) in Zscaler Client Connector, both rating CVSS 9.1, and references a vendor link for patch information.

    02011378
    7.2K followersView on X

Explore more