CVE-2023-5408

Name: CVE-2023-5408
Creator: NVD / NIST
Published: 2023-11-02T03:15:10.23+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.2/10EPSS 1.11%

Last modified Jun 17, 2026

CVE-2023-5408 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. A privilege escalation flaw was found in the node restriction admission plugin of the kubernetes api server of OpenShift. A remote attacker who modifies the node role label could steer workloads from the control plane and etcd nodes onto different worker nodes and gain broader access to the cluster.. EPSS estimates a 1.11% chance of exploitation in the next 30 days.

Description

A privilege escalation flaw was found in the node restriction admission plugin of the kubernetes api server of OpenShift. A remote attacker who modifies the node role label could steer workloads from the control plane and etcd nodes onto different worker nodes and gain broader access to the cluster.

Metrics

CVSS 3.1

7.2/10

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

EPSS Probability

1.11%

61.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-269

Affected Software

Vendor	Product	Versions
Redhat	Openshift Container Platform	4.11
Redhat	Openshift Container Platform	4.12
Redhat	Openshift Container Platform	4.13
Redhat	Openshift Container Platform	4.14

References

https://access.redhat.com/errata/RHSA-2023:5006Vendor Advisory
https://access.redhat.com/errata/RHSA-2023:6130Vendor Advisory
https://access.redhat.com/errata/RHSA-2023:6842Vendor Advisory
https://access.redhat.com/errata/RHSA-2023:7479Vendor Advisory
https://access.redhat.com/security/cve/CVE-2023-5408Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2242173Issue Tracking, Vendor Advisory
https://github.com/openshift/kubernetes/pull/1736Issue Tracking
https://access.redhat.com/errata/RHSA-2023:5006Vendor Advisory
https://access.redhat.com/errata/RHSA-2023:6130Vendor Advisory
https://access.redhat.com/errata/RHSA-2023:6842Vendor Advisory
https://access.redhat.com/errata/RHSA-2023:7479Vendor Advisory
https://access.redhat.com/security/cve/CVE-2023-5408Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2242173Issue Tracking, Vendor Advisory
https://github.com/openshift/kubernetes/pull/1736Issue Tracking

Timeline

Published: Nov 2, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-5408?

How severe is CVE-2023-5408?

CVE-2023-5408 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 1.11% probability of exploitation in the next 30 days.

How do I fix CVE-2023-5408?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-5408?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST