CVE-2025-0426: K8s.io/kubernetes Denial of Service Vulnerability

MODERATE
Advisory Identifier: GHSA-jgfp-53c3-624w
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CVSS 6.2
CWE-400
Published
Advisory Summary

CVE-2025-0426 is a MODERATE (CVSS 6.2) denial of service vulnerability (CWE-400: Uncontrolled Resource Consumption) affecting K8s.io/kubernetes libraries in the Go ecosystem. The issue involves node denial of service via kubelet checkpoint api. Remediation is available by upgrading affected packages to version 1.32.2, 1.31.6, 1.30.10, 1.29.14.

CVE-2025-0426 at a Glance

CVE Identifier CVE-2025-0426
GHSA Identifier GHSA-jgfp-53c3-624w
Severity MODERATE
CVSS v3.1 Base Score 6.2
CWE Classification CWE-400: Uncontrolled Resource Consumption
Affected Product K8s.io/kubernetes
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 6.2

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Attack Vector Local (AV:L)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2025-0426

To remediate this vulnerability, upgrade all affected K8s.io/kubernetes dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

k8s.io/kubernetes fixed: 1.32.2 
Upgrade k8s.io/kubernetes to 1.32.2
k8s.io/kubernetes fixed: 1.31.6 
Upgrade k8s.io/kubernetes to 1.31.6
k8s.io/kubernetes fixed: 1.30.10 
Upgrade k8s.io/kubernetes to 1.30.10
k8s.io/kubernetes fixed: 1.29.14 
Upgrade k8s.io/kubernetes to 1.29.14
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for k8s.io/kubernetes

How to Check if You Are Affected

To determine whether your application is affected by CVE-2025-0426, inspect your project dependencies for K8s.io/kubernetes:

inspect dependencies for k8s.io/kubernetes

Analyze the terminal output to locate any version of K8s.io/kubernetes in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.32.2), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-400: Uncontrolled Resource Consumption, where the product does not properly control the allocation and maintenance of a limited resource. In K8s.io/kubernetes, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

A security issue was discovered in Kubernetes where a large number of container checkpoint requests made to the unauthenticated kubelet read-only HTTP endpoint may cause a Node Denial of Service by filling the Node's disk.

CVE-2025-0426 Affected K8s.io/kubernetes Versions

4 component(s)
Fixed Versions:
1.32.21.31.61.30.101.29.14
Product / Package Ecosystem Affected Versions Fixed Version
k8s.io/kubernetes
golang/k8s.io/kubernetes
Go
≥ 1.32.0
< 1.32.2
1.32.2
k8s.io/kubernetes
golang/k8s.io/kubernetes
Go
≥ 1.31.0
< 1.31.6
1.31.6
k8s.io/kubernetes
golang/k8s.io/kubernetes
Go
≥ 1.30.0
< 1.30.10
1.30.10
k8s.io/kubernetes
golang/k8s.io/kubernetes
Go
< 1.29.14
1.29.14

References

NVD — CVE-2025-0426 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-0426
K8s.io/kubernetes Source Repository REPOSITORY
https://github.com/kubernetes/kubernetes/issues/130016
GitHub Advisory / Wiki ADVISORY
https://github.com/advisories/GHSA-jgfp-53c3-624w
K8s.io/kubernetes Source Repository REPOSITORY
https://github.com/kubernetes/kubernetes
K8s.io/kubernetes Security Information SECURITY
https://groups.google.com/g/kubernetes-security-announce/c/KiODfu8i6w8
K8s.io/kubernetes Security Information SECURITY
http://www.openwall.com/lists/oss-security/2025/02/13/1

Frequently Asked Questions

What is CVE-2025-0426?
CVE-2025-0426 is a security vulnerability in K8s.io/kubernetes involving Node Denial of Service via kubelet Checkpoint API under CWE-400: Uncontrolled Resource Consumption.
Which K8s.io/kubernetes versions are affected?
Affected versions include releases prior to 1.32.2, 1.31.6, 1.30.10, 1.29.14 across affected packages: k8s.io/kubernetes.
What version fixes CVE-2025-0426?
Upgrading to 1.32.2, 1.31.6, 1.30.10, 1.29.14 (or the latest patched release for your respective branch) resolves the vulnerability.
Is k8s.io/kubernetes affected?
Yes, k8s.io/kubernetes is affected in releases prior to 1.32.2, 1.31.6, 1.30.10, 1.29.14. Upgrade your dependency to 1.32.2, 1.31.6, 1.30.10, 1.29.14 or later.
What is the CVSS score of CVE-2025-0426?
CVE-2025-0426 has a CVSS v3.1 base score of 6.2 (MODERATE) with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2025-0426?
CVE-2025-0426 is classified under CWE-400: Uncontrolled Resource Consumption (The product does not properly control the allocation and maintenance of a limited resource.).
How can I check Go dependencies for CVE-2025-0426?
Run the dependency tree command: 'inspect dependencies for k8s.io/kubernetes'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-jgfp-53c3-624w",
  "modified" : "2025-12-20T03:12:03Z",
  "published" : "2025-02-13T18:32:33Z",
  "aliases" : [ "CVE-2025-0426" ],
  "summary" : "Node Denial of Service via kubelet Checkpoint API",
  "details" : "A security issue was discovered in Kubernetes where a large number of container checkpoint requests made to the unauthenticated kubelet read-only HTTP endpoint may cause a Node Denial of Service by filling the Node's disk.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "k8s.io/kubernetes"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.32.0"
      }, {
        "fixed" : "1.32.2"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "k8s.io/kubernetes"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.31.0"
      }, {
        "fixed" : "1.31.6"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "k8s.io/kubernetes"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.30.0"
      }, {
        "fixed" : "1.30.10"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "k8s.io/kubernetes"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.29.14"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-0426"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/kubernetes/kubernetes/issues/130016"
  }, {
    "type" : "ADVISORY",
    "url" : "https://github.com/advisories/GHSA-jgfp-53c3-624w"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/kubernetes/kubernetes"
  }, {
    "type" : "WEB",
    "url" : "https://groups.google.com/g/kubernetes-security-announce/c/KiODfu8i6w8"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2025/02/13/1"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-400" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-02-13T20:55:29Z",
    "nvd_published_at" : "2025-02-13T16:16:48Z"
  }
}