What’s Vulnerable › Vulnerabilities

CVE-2023-3893: Kubernetes - csi-proxy - Insufficient input sanitization leads to privilege escalation

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-11-03 · updated 2026-06-17
• Weakness: CWE-20

Description

A security issue was discovered in Kubernetes where a user that can create pods on Windows nodes running kubernetes-csi-proxy may be able to escalate to admin privileges on those nodes. Kubernetes clusters are only affected if they include Windows nodes running kubernetes-csi-proxy.

Affected products

• Kubernetes csi-proxy: through 1.1.2; 2.0.0-alpha0

References

• https://github.com/kubernetes/kubernetes/issues/119594
• https://groups.google.com/g/kubernetes-security-announce/c/lWksE2BoCyQ
• https://security.netapp.com/advisory/ntap-20231221-0004/
• https://github.com/kubernetes/kubernetes/issues/119594
• https://groups.google.com/g/kubernetes-security-announce/c/lWksE2BoCyQ
• https://security.netapp.com/advisory/ntap-20231221-0004/

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