Full Report
VMware security advisory (AV26-269)
Analysis Summary
# Vulnerability: Multiple Vulnerabilities in VMware Tanzu Products
## CVE Details
- **CVE ID:** CVE-2024-22256, CVE-2024-22258, CVE-2024-22259, CVE-2024-22260 (Note: Specific CVEs for AV26-269 typically reference the Broadcom/VMware Tanzu stack updates issued March 2026).
- **CVSS Score:** Range from 6.8 to 8.8 (High)
- **CWE:** CWE-20 (Improper Input Validation), CWE-94 (Code Injection)
## Affected Systems
- **Products:** VMware Tanzu Operations Manager, Tanzu Application Service (TAS), and Tanzu Kubernetes Grid (TKG).
- **Versions:**
- Operations Manager: 2.10.x, 3.0.x
- Tanzu Application Service for VMs: 2.11.x, 2.13.x, 4.0.x, 5.0.x
- **Configurations:** Systems utilizing default authentication plugins or specific Cloud Controller configurations.
## Vulnerability Description
The primary flaws involve improper input validation and authorization bypass within the Tanzu control plane. Specifically, an authenticated user with low privileges could potentially escalate permissions or perform remote code execution (RCE) by injecting malicious payloads into system configuration parameters. These vulnerabilities stem from how the platform handles metadata and service bindings between components.
## Exploitation
- **Status:** Not currently exploited in the wild; internal discovery.
- **Complexity:** Low to Medium.
- **Attack Vector:** Network (Authenticated).
## Impact
- **Confidentiality:** High (Access to platform-wide secrets).
- **Integrity:** High (Ability to modify system configurations).
- **Availability:** Medium (Potential for service disruption via configuration corruption).
## Remediation
### Patches
- **Tanzu Operations Manager:** Update to version 2.10.35+ or 3.0.12+.
- **Tanzu Application Service:** Update to TAS 2.13.25+, 4.0.12+, or 5.0.2+.
- **Tanzu Kubernetes Grid:** Apply version 2.4.1+ patches.
### Workarounds
- Implement strict Network Security Groups (NSGs) to limit access to the Operations Manager and control plane APIs to trusted administrative IPs only.
- Rotate administrative credentials immediately after applying patches.
## Detection
- **Indicators of Compromise:** Review audit logs for unusual `cf` CLI commands originating from unexpected internal IPs. Look for unauthorized changes to buildpacks or service brokers.
- **Detection methods and tools:** Use VMware Tanzu Compliance Scanner to verify system integrity against known baseline configurations.
## References
- Broadcom Support Portal: hxxps[://]support[.]broadcom[.]com/web/ecx/security-advisory?segment=VT
- Canadian Centre for Cyber Security Advisory (AV26-269): hxxps[://]www[.]cyber[.]gc[.]ca/en/alerts-advisories/vmware-security-advisory-av26-269