CVE Catalog

CVE-2026-41012

HighCVSS 7.7
Published: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.10%

1th percentile - higher than 1% of all known CVEs

Summary

A traffic interception vulnerability in BOSH Director vCenter CPI allows an attacker positioned between BOSH Director and vCenter to impersonate the vCenter REST API and capture administrator credentials transmitted via HTTP Basic auth, leading to complete virtualization infrastructure takeover.

Risk Assessment

The risk to the organization is critical: capturing vCenter administrator credentials gives the attacker full control over all virtual machines, datastores, and networks managed by the CPI, potentially affecting hundreds or thousands of VMs across multiple environments.

Recommendation

Immediately implement proper certificate validation and pinning in the BOSH Director to vCenter communication, and consider using stronger authentication than HTTP Basic auth. Also review network traffic for potential credential interception.

Related vulnerabilities

Original NVD description (English source)

Traffic interception vulnerability in BOSH Director vCenter CPI allows attackers positioned between BOSH Director and vCenter to impersonate vCenter REST API and capture administrator credentials via HTTP Basic auth, leading to complete virtualization infrastructure takeover. An attacker who can intercept traffic between the BOSH Director and vCenter can establish a malicious server impersonating the vCenter REST API. When the BOSH Director makes CPI calls to perform routine cloud infrastructure operations, the attacker captures the vCenter administrator username and password transmitted via HTTP Basic authentication. The vulnerability stems from insufficient authentication security in the communication protocol between BOSH Director and vCenter. While HTTPS may be used, the lack of proper certificate validation and pinning allows attackers to successfully impersonate vCenter endpoints. Because vCenter credentials typically grant full administrative control over the entire virtualization estate, successful credential capture yields complete takeover of every VM, datastore, and network the CPI manages. This exposure exists on every CPI call (including routine deployment operations, not just when tags are configured) and cannot be mitigated by supplying a CA certificate alone. The attack impacts all infrastructure managed by the compromised vCenter instance, potentially affecting hundreds or thousands of VMs across multiple deployments and environments.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS