Vulnerability-Lookup

CVE-2025-4563 (GCVE-0-2025-4563)

Vulnerability from cvelistv5 – Published: 2025-06-23 15:38 – Updated: 2025-06-23 15:58

Title

Nodes can bypass dynamic resource allocation authorization checks

Summary

A vulnerability exists in the NodeRestriction admission controller where nodes can bypass dynamic resource allocation authorization checks. When the DynamicResourceAllocation feature gate is enabled, the controller properly validates resource claim statuses during pod status updates but fails to perform equivalent validation during pod creation. This allows a compromised node to create mirror pods that access unauthorized dynamic resources, potentially leading to privilege escalation.

Severity ?

2.7 (Low)


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

CWE

CWE-20 - Improper Input Validation

Assigner

kubernetes

References

URL

Tags

	https://groups.google.com/g/kubernetes-security-a…	mailing-list
	https://github.com/kubernetes/kubernetes/issues/132151	issue-tracking

Impacted products

	Vendor	Product	Version
	Kubernetes	Kubernetes	Affected: v1.32.0 - v1.32.5 Affected: v1.33.0 - v1.33.1

Credits

amitschendel

Show details on NVD website

JSON

To clipboard

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GHSA-HJ2P-8WJ8-PFQ4

Vulnerability from github – Published: 2025-06-23 18:30 – Updated: 2025-08-06 21:47

Summary

kubernetes allows nodes to bypass dynamic resource allocation authorization checks

Details

Severity ?

2.7 (Low)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 1.32.5"
      },
      "package": {
        "ecosystem": "Go",
        "name": "k8s.io/kubernetes"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.32.0"
            },
            {
              "fixed": "1.32.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 1.33.1"
      },
      "package": {
        "ecosystem": "Go",
        "name": "k8s.io/kubernetes"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.33.0"
            },
            {
              "fixed": "1.33.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-4563"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-863"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-06-23T22:41:38Z",
    "nvd_published_at": "2025-06-23T16:15:27Z",
    "severity": "LOW"
  },
  "details": "A vulnerability exists in the NodeRestriction admission controller where nodes can bypass dynamic resource allocation authorization checks. When the DynamicResourceAllocation feature gate is enabled, the controller properly validates resource claim statuses during pod status updates but fails to perform equivalent validation during pod creation. This allows a compromised node to create mirror pods that access unauthorized dynamic resources, potentially leading to privilege escalation.",
  "id": "GHSA-hj2p-8wj8-pfq4",
  "modified": "2025-08-06T21:47:22Z",
  "published": "2025-06-23T18:30:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-4563"
    },
    {
      "type": "WEB",
      "url": "https://github.com/kubernetes/kubernetes/issues/132151"
    },
    {
      "type": "WEB",
      "url": "https://github.com/kubernetes/kubernetes/pull/131844"
    },
    {
      "type": "WEB",
      "url": "https://github.com/kubernetes/kubernetes/pull/131875"
    },
    {
      "type": "WEB",
      "url": "https://github.com/kubernetes/kubernetes/pull/131876"
    },
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      "type": "PACKAGE",
      "url": "https://github.com/kubernetes/kubernetes"
    },
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      "url": "https://groups.google.com/g/kubernetes-security-announce/c/Zv84LMRuvMQ"
    },
    {
      "type": "WEB",
      "url": "https://pkg.go.dev/vuln/GO-2025-3774"
    }
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  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "kubernetes allows nodes to bypass dynamic resource allocation authorization checks"
}

FKIE_CVE-2025-4563

Vulnerability from fkie_nvd - Published: 2025-06-23 16:15 - Updated: 2025-06-23 20:16

Severity ?

2.7 (Low) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L

Summary

References

	URL	Tags
	jordan@liggitt.net	https://github.com/kubernetes/kubernetes/issues/132151
	jordan@liggitt.net	https://groups.google.com/g/kubernetes-security-announce/c/Zv84LMRuvMQ

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability exists in the NodeRestriction admission controller where nodes can bypass dynamic resource allocation authorization checks. When the DynamicResourceAllocation feature gate is enabled, the controller properly validates resource claim statuses during pod status updates but fails to perform equivalent validation during pod creation. This allows a compromised node to create mirror pods that access unauthorized dynamic resources, potentially leading to privilege escalation."
    },
    {
      "lang": "es",
      "value": "Existe una vulnerabilidad en el controlador de admisi\u00f3n NodeRestriction que permite a los nodos eludir las comprobaciones de autorizaci\u00f3n de asignaci\u00f3n din\u00e1mica de recursos. Cuando la funci\u00f3n DynamicResourceAllocation est\u00e1 habilitada, el controlador valida correctamente los estados de las solicitudes de recursos durante las actualizaciones de estado de los pods, pero no realiza una validaci\u00f3n equivalente durante su creaci\u00f3n. Esto permite que un nodo comprometido cree pods espejo que acceden a recursos din\u00e1micos no autorizados, lo que podr\u00eda provocar una escalada de privilegios."
    }
  ],
  "id": "CVE-2025-4563",
  "lastModified": "2025-06-23T20:16:21.633",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 2.7,
          "baseSeverity": "LOW",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 1.2,
        "impactScore": 1.4,
        "source": "jordan@liggitt.net",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-06-23T16:15:27.350",
  "references": [
    {
      "source": "jordan@liggitt.net",
      "url": "https://github.com/kubernetes/kubernetes/issues/132151"
    },
    {
      "source": "jordan@liggitt.net",
      "url": "https://groups.google.com/g/kubernetes-security-announce/c/Zv84LMRuvMQ"
    }
  ],
  "sourceIdentifier": "jordan@liggitt.net",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ],
      "source": "jordan@liggitt.net",
      "type": "Secondary"
    }
  ]
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

CVE-2025-4563 (GCVE-0-2025-4563)

GHSA-HJ2P-8WJ8-PFQ4

FKIE_CVE-2025-4563

Tags

Sightings

Nomenclature