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Vulnerability record · CVE-2023-5528 · published 14 November 2023

CVE-2023-5528: Kubernetes improper input validation vulnerability

Kubernetes · Kubernetes

A security issue was discovered in Kubernetes where a user that can create pods and persistent volumes on Windows nodes may be able to escalate to admin privileges on those nodes. Kubernetes clusters are only affected if they are using an in-tree storage plugin for Windows nodes.

8.8 CVSS 3.1 High EPSS 4.3% · top 9.3% CWE-20 · Improper input validation
8.8CVSS 3.1 base score
4.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
8References
17 Jun 2026Last modified by NVD

Description

A security issue was discovered in Kubernetes where a user that can create pods and persistent volumes on Windows nodes may be able to escalate to admin privileges on those nodes. Kubernetes clusters are only affected if they are using an in-tree storage plugin for Windows nodes.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/kubernetes/kubernetes/issues/121879 Issue TrackingPatch
https://groups.google.com/g/kubernetes-security-announce/c/SL_d4NR8pzA Mailing List
https://github.com/kubernetes/kubernetes/issues/121879 Issue TrackingPatch
https://groups.google.com/g/kubernetes-security-announce/c/SL_d4NR8pzA Mailing List
https://lists.fedoraproject.org/archives/list/[email protected]/message/3JH444PWZBINXLLFV7XLIJIZJ PatchRelease Notes
https://lists.fedoraproject.org/archives/list/[email protected]/message/4XZIX727JIKF5RQW7RVVBLWXB PatchRelease Notes
https://lists.fedoraproject.org/archives/list/[email protected]/message/7MPGMITSZXUCAVO7Q75675SOL PatchRelease Notes
https://security.netapp.com/advisory/ntap-20240119-0009/ Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2023-5528), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.