Critical [CVE-2026-59309] vCenter: VMware vCenter contains an authentication bypass vulnerability in the VMware Directory Service.
This critical-severity VMware (Broadcom) advisory covers CVE-2026-59309 affecting Cloud Foundation, vSphere Foundation, vCenter.
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Summary
VMware vCenter contains an authentication bypass vulnerability in the VMware Directory Service. A malicious actor with network access to vCenter may exploit this issue to bypass authentication and gain unauthorized access to the system.
Affected products named by the advisory: Cloud Foundation; vSphere Foundation; Telco Cloud Infrastructure; Telco Cloud Platform.
- Cloud Foundation 9.1.x.x
- Cloud Foundation 9.0.x.x
- Cloud Foundation 5.x
- vSphere Foundation 9.1.x.x
- vSphere Foundation 9.0.x.x
- vCenter 9.1.x.x before 9.1.0.0300
- vCenter 9.0.x.x before 9.0.2.0100
- vCenter 8.0 before 8.0 U3k
- Telco Cloud Infrastructure 3.0
- Telco Cloud Platform 5.1.x
- Telco Cloud Platform 5.0.x
- Telco Cloud Platform 4.x
Official advisory · high-confidence parse· fetched 3 months ago·verify at source
- 9.1.0.0300
- 9.0.2.0100
- 8.0 U3k
Official advisory · high-confidence parse· fetched 3 months ago·verify at source
Mitigation
Upgrade to a fixed release: 9.1.0.0300, 9.0.2.0100, 8.0 U3k. That is the remediation for this advisory.
The vendor advisory may list interim mitigations or workarounds not captured here. Review it before change work.
Official advisory · high-confidence parse· fetched 3 months ago·verify at source
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