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LOW severity

CVE-2023-2431 — kubernetes

LOWFix: kubernetes/kubernetes#117020

CVE-2023-2431 is a low-severity (CVSS 3.4) CWE-1287 vulnerability in k8s.io/kubernetes. A fix is available for k8s.io/kubernetes — see the affected versions and patch details below.

Bypass of seccomp profile enforcement

Also known asGHSA-xc8m-28vv-4pjcGO-2023-1864
Published
Updated
Affected
4 pkgs
Patched
4 / 4
Exploits
None indexed
Exploitation data as of Nov 7, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

Proof-of-concept exploit code exists

  • CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.

Exploitation and automatability from CISA’s SSVC triage for CVE-2023-2431.

EPSS Exploitation Probability

via FIRST.org ↗
0.3%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs17th percentile — riskier than 17% of all scored CVEsHighest risk
0.00%0.25%0.50%0.76%0.0%0.3%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

4 pkgs affected
🐹k8s.io/kubernetes🐹k8s.io/kubernetes🐹k8s.io/kubernetes🐹k8s.io/kubernetes

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.

Description

A security issue was discovered in Kubelet that allows pods to bypass the seccomp profile enforcement. Pods that use localhost type for seccomp profile but specify an empty profile field, are affected by this issue. In this scenario, this vulnerability allows the pod to run in unconfined (seccomp disabled) mode. This bug affects Kubelet.

Affected Packages

4 total 4 fixed
EcosystemPackageVulnerable rangeFix
🐹Gok8s.io/kubernetesall versions1.24.14go get k8s.io/kubernetes@v1.24.14
🐹Gok8s.io/kubernetes≥ 1.25.0&&< 1.25.101.25.10go get k8s.io/kubernetes@v1.25.10
🐹Gok8s.io/kubernetes≥ 1.26.0&&< 1.26.51.26.5go get k8s.io/kubernetes@v1.26.5
🐹Gok8s.io/kubernetes≥ 1.27.0&&< 1.27.21.27.2go get k8s.io/kubernetes@v1.27.2

Affected Products

2 products · 5 configurations
OS
fedorafedoraproject
1 version
38
Application
kuberneteskubernetes
≥ 1.27.0 && < 1.27.2
range

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for k8s.io/kubernetes, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update k8s.io/kubernetes to 1.24.14 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2023-2431 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Fixing This On Your OS

If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.

Red HatLow
ProductFixed inAdvisory
Red Hat OpenShift Container Platform 4.13openshift4-wincw/windows-machine-config-rhel9-operator:8.1.0-24RHSA-2023:6156

Frequently Asked Questions

A security issue was discovered in Kubelet that allows pods to bypass the seccomp profile enforcement. Pods that use localhost type for seccomp profile but specify an empty profile field, are affected by this issue. In this scenario, this vulnerability allows the pod to run in unconfined (seccomp disabled) mode. This bug affects Kubelet.
O3 Security · Impact-Aware SCA

Is CVE-2023-2431 in your dependencies?

Find it across Go, including transitive dependencies.

CVE-2023-2431: kubernetes — Fixed in 1.24.14