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

Vulnerability from cvelistv5 – Published: 2025-06-23 15:38 – Updated: 2025-06-23 15:58
VLAI
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
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-06-23 15:57 UTC
CWE
  • CWE-20 - Improper Input Validation
Assigner
kubernetes CNA under the mitre root
CNA scorecard – unranked: 4 records in the last 180 days, 10 needed details
References
Impacted products
Vendor Product Version CPE status
Kubernetes Kubernetes Affected: v1.32.0 - v1.32.5
Affected: v1.33.0 - v1.33.1
guessed Create a notification for this product.
Date Public
2025-06-19 02:30
Credits
amitschendel
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-4563",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-06-23T15:57:05.350312Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-06-23T15:58:05.106Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Kubernetes",
          "vendor": "Kubernetes",
          "versions": [
            {
              "status": "affected",
              "version": "v1.32.0 - v1.32.5"
            },
            {
              "status": "affected",
              "version": "v1.33.0 - v1.33.1"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "user": "00000000-0000-4000-9000-000000000000",
          "value": "amitschendel"
        }
      ],
      "datePublic": "2025-06-19T02:30:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cdiv\u003eA 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.\u003c/div\u003e"
            }
          ],
          "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."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-554",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-554 Functionality Bypass"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "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"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-20",
              "description": "CWE-20 Improper Input Validation",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-06-23T15:38:42.258Z",
        "orgId": "a6081bf6-c852-4425-ad4f-a67919267565",
        "shortName": "kubernetes"
      },
      "references": [
        {
          "tags": [
            "mailing-list"
          ],
          "url": "https://groups.google.com/g/kubernetes-security-announce/c/Zv84LMRuvMQ"
        },
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/kubernetes/kubernetes/issues/132151"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cdiv\u003e\u003cdiv\u003eTo mitigate this vulnerability, upgrade Kubernetes: \u003ca target=\"_blank\" rel=\"nofollow\" href=\"https://kubernetes.io/docs/tasks/administer-cluster/cluster-upgrade/\"\u003ehttps://kubernetes.io/docs/tasks/administer-cluster/cluster-upgrade/\u003c/a\u003e\u003c/div\u003e\u003c/div\u003e"
            }
          ],
          "value": "To mitigate this vulnerability, upgrade Kubernetes:  https://kubernetes.io/docs/tasks/administer-cluster/cluster-upgrade/"
        }
      ],
      "source": {
        "discovery": "INTERNAL"
      },
      "title": "Nodes can bypass dynamic resource allocation authorization checks",
      "x_generator": {
        "engine": "Vulnogram 0.1.0-dev"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a6081bf6-c852-4425-ad4f-a67919267565",
    "assignerShortName": "kubernetes",
    "cveId": "CVE-2025-4563",
    "datePublished": "2025-06-23T15:38:42.258Z",
    "dateReserved": "2025-05-12T03:29:13.710Z",
    "dateUpdated": "2025-06-23T15:58:05.106Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2025-4563",
      "date": "2026-10-30",
      "epss": "0.00827",
      "percentile": "0.5746"
    },
    "microsoft_vex": {
      "current_release_date": "2026-02-18T01:04:47.000Z",
      "cve": "CVE-2025-4563",
      "id": "msrc_CVE-2025-4563",
      "initial_release_date": "2025-06-02T00:00:00.000Z",
      "product_status:fixed": "1",
      "product_status:known_affected": "1",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "Nodes can bypass dynamic resource allocation authorization checks",
      "url": "https://msrc.microsoft.com/csaf/vex/2025/msrc_cve-2025-4563.json",
      "version": "2"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Kubernetes",
                "vendor": "Kubernetes",
                "versions": [
                  {
                    "status": "affected",
                    "version": "v1.32.0 - v1.32.5"
                  },
                  {
                    "status": "affected",
                    "version": "v1.33.0 - v1.33.1"
                  }
                ]
              }
            ],
            "source": "jordan@liggitt.net"
          }
        ],
        "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": "2026-06-17T09:33:31.753",
        "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"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2025-4563",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-06-23T15:57:05.350312Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "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": "Deferred",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-20"
              }
            ],
            "source": "jordan@liggitt.net",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-06-27T13:15:19+00:00",
      "cve": "CVE-2025-4563",
      "id": "CVE-2025-4563",
      "initial_release_date": "2025-06-19T00:00:00+00:00",
      "product_status:known_affected": "8",
      "product_status:known_not_affected": "5",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kube-apiserver: NodeRestriction Admission Controller Dynamic Resource Allocation Bypass",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-4563.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-10-16T01:09:35Z",
      "cve": "CVE-2025-4563",
      "id": "CVE-2025-4563",
      "initial_release_date": "2025-06-23T23:21:57Z",
      "product_status:known_affected": "0",
      "product_status:known_not_affected": "478",
      "product_status:recommended": "5",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-4563",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/2025/cve-2025-4563.json",
      "version": "14"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2025-4563",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2025-06-23T15:57:05.350312Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2025-06-23T15:57:08.938Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Kubernetes",
              "vendor": "Kubernetes",
              "versions": [
                {
                  "status": "affected",
                  "version": "v1.32.0 - v1.32.5"
                },
                {
                  "status": "affected",
                  "version": "v1.33.0 - v1.33.1"
                }
              ]
            }
          ],
          "credits": [
            {
              "lang": "en",
              "type": "reporter",
              "user": "00000000-0000-4000-9000-000000000000",
              "value": "amitschendel"
            }
          ],
          "datePublic": "2025-06-19T02:30:00.000Z",
          "descriptions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "\u003cdiv\u003eA 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.\u003c/div\u003e"
                }
              ],
              "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."
            }
          ],
          "impacts": [
            {
              "capecId": "CAPEC-554",
              "descriptions": [
                {
                  "lang": "en",
                  "value": "CAPEC-554 Functionality Bypass"
                }
              ]
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "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"
              },
              "format": "CVSS",
              "scenarios": [
                {
                  "lang": "en",
                  "value": "GENERAL"
                }
              ]
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-20",
                  "description": "CWE-20 Improper Input Validation",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2025-06-23T15:38:42.258Z",
            "orgId": "a6081bf6-c852-4425-ad4f-a67919267565",
            "shortName": "kubernetes"
          },
          "references": [
            {
              "tags": [
                "mailing-list"
              ],
              "url": "https://groups.google.com/g/kubernetes-security-announce/c/Zv84LMRuvMQ"
            },
            {
              "tags": [
                "issue-tracking"
              ],
              "url": "https://github.com/kubernetes/kubernetes/issues/132151"
            }
          ],
          "solutions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "\u003cdiv\u003e\u003cdiv\u003eTo mitigate this vulnerability, upgrade Kubernetes: \u003ca target=\"_blank\" rel=\"nofollow\" href=\"https://kubernetes.io/docs/tasks/administer-cluster/cluster-upgrade/\"\u003ehttps://kubernetes.io/docs/tasks/administer-cluster/cluster-upgrade/\u003c/a\u003e\u003c/div\u003e\u003c/div\u003e"
                }
              ],
              "value": "To mitigate this vulnerability, upgrade Kubernetes:  https://kubernetes.io/docs/tasks/administer-cluster/cluster-upgrade/"
            }
          ],
          "source": {
            "discovery": "INTERNAL"
          },
          "title": "Nodes can bypass dynamic resource allocation authorization checks",
          "x_generator": {
            "engine": "Vulnogram 0.1.0-dev"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "a6081bf6-c852-4425-ad4f-a67919267565",
        "assignerShortName": "kubernetes",
        "cveId": "CVE-2025-4563",
        "datePublished": "2025-06-23T15:38:42.258Z",
        "dateReserved": "2025-05-12T03:29:13.710Z",
        "dateUpdated": "2025-06-23T15:58:05.106Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Loading timeline…




    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.