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CVE-2023-3893

Kubernetes - csi-proxy - Insufficient input sanitization leads to privilege escalation

HIGH
8.8
CVSS Score
Published: November 3, 2023 at 05:34 PM UTC
Updated: June 17, 2026 at 06:15 AM UTC
1 product affected across 1 vendorCsi Proxy

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Severity
HIGH8.8
Exploit prediction
EPSS 2%

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Csi Proxy· Kubernetes
95%
v ≤ 1.1.2v ≤ v1.1.22.0.0 alpha02.0.0-alpha.0
Vendor states this is fixed in v1.1.3 (unaffected)
Vendor states this is fixed in v2.0.0-alpha.1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (3)

Issue TrackingVendor Advisory
Source: [email protected]
https://github.com/kubernetes/kubernetes/issues/119594
Mailing List
Source: [email protected]
https://groups.google.com/g/kubernetes-security-announce/c/lWksE2BoCyQ
Third Party Advisory
Source: [email protected]
https://security.netapp.com/advisory/ntap-20231221-0004/

CVSS

8.8HIGHkubernetes
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-20NVD-CWE-noinfo

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