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No exploitation reportedFix available

CVE-2023-5408

No exploitation reported by the sources we read.

  • Published2023-11-02
  • WeaknessCWE-269

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2023-11-0203:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-5408?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-5408?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Redhat openshift container platform
BranchAffectedFixed in
4.11= 4.11no fix published
4.12= 4.12no fix published
4.13= 4.13no fix published
4.14= 4.14no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • RHSA-2023:7479 Red Hat Product Security4 products fixed

    Red Hat Security Advisory: OpenShift Container Platform 4.11.54 bug fix and security update

  • RHSA-2023:6842 Red Hat Product Security4 products fixed

    Red Hat Security Advisory: OpenShift Container Platform 4.12.43 bug fix and security update

  • RHSA-2023:5006 Red Hat Product Security4 products fixed

    Red Hat Security Advisory: OpenShift Container Platform 4.14.0 bug fix and security update

  • RHSA-2023:6130 Red Hat Product Security4 products fixed

    Red Hat Security Advisory: OpenShift Container Platform 4.13.19 bug fix and security update

Full record on NVD

Fix

  1. Vendor fix Red Hat Product Security RHSA-2023:7479 · 4 productsFor OpenShift Container Platform 4.11 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.11/release_notes/o…
  2. Vendor fix Red Hat Product Security RHSA-2023:6842 · 4 productsFor OpenShift Container Platform 4.12 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.12/release_notes/o…
  3. Vendor fix Red Hat Product Security RHSA-2023:5006 · 4 productsFor OpenShift Container Platform 4.14 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.14/release_notes/o…
  4. Vendor fix Red Hat Product Security RHSA-2023:6130 · 4 productsFor OpenShift Container Platform 4.13 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.13/release_notes/o…

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • CISA-ADPSSVC decisionnone2025-10-17
  • OpenCVESSVC decisionnone—
  • CNACVSS 3.17.2read 2026-10-23
  • NVDCVSS 3.17.2read 2026-10-23
  • CNAweakness (CWE)CWE-269read 2026-10-23
  • FIRST EPSSEPSS score1.5 %2026-10-22

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Published
2023-11-02
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2023-5408?

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.

Is CVE-2023-5408 actively exploited?

Active exploitation of CVE-2023-5408 has not been confirmed. Its EPSS score was 1.5% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-5408?

CVE-2023-5408 has a CVSS v3 base score of 7.2 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

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