{"id":"CVE-2025-5187","state":"PUBLISHED","title":"Nodes can delete themselves by adding an OwnerReference","description":"A vulnerability exists in the NodeRestriction admission controller in Kubernetes clusters where node users can delete their corresponding node object by patching themselves with an OwnerReference to a cluster-scoped resource. If the OwnerReference resource does not exist or is subsequently deleted, the given node object will be deleted via garbage collection.","publishedAt":"2025-08-27T16:20:56.778Z","updatedAt":"2026-02-26T17:47:59.242Z","severity":{"score":6.7,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L","source":"kubernetes"},"assigner":"kubernetes","products":["Kubernetes Kubernetes"],"affected":[{"vendor":"Kubernetes","product":"Kubernetes","defaultStatus":"unaffected","versions":[{"version":"v1.31.0","status":"affected","lessThanOrEqual":"v1.31.11","versionType":"custom"},{"version":"v1.32.0","status":"affected","lessThanOrEqual":"v1.32.7","versionType":"custom"},{"version":"v1.33.0","status":"affected","lessThanOrEqual":"v1.33.3","versionType":"custom"}]}],"references":["https://github.com/kubernetes/kubernetes/issues/133471","https://groups.google.com/g/kubernetes-security-announce/c/znSNY7XCztE"],"weaknesses":["CWE-863"],"ingestedAt":"2026-10-29T20:09:39.787Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/5xxx/CVE-2025-5187.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-5187","state":"PUBLISHED","datePublished":"2025-08-27T16:20:56.778Z","dateUpdated":"2026-02-26T17:47:59.242Z","assignerShortName":"kubernetes","assignerOrgId":"a6081bf6-c852-4425-ad4f-a67919267565","dateReserved":"2025-05-25T18:24:14.173Z"},"containers":{"cna":{"title":"Nodes can delete themselves by adding an OwnerReference","descriptions":[{"lang":"en","value":"A vulnerability exists in the NodeRestriction admission controller in Kubernetes clusters where node users can delete their corresponding node object by patching themselves with an OwnerReference to a cluster-scoped resource. If the OwnerReference resource does not exist or is subsequently deleted, the given node object will be deleted via garbage collection."}],"affected":[{"vendor":"Kubernetes","product":"Kubernetes","defaultStatus":"unaffected","versions":[{"version":"v1.31.0","status":"affected","lessThanOrEqual":"v1.31.11","versionType":"custom"},{"version":"v1.32.0","status":"affected","lessThanOrEqual":"v1.32.7","versionType":"custom"},{"version":"v1.33.0","status":"affected","lessThanOrEqual":"v1.33.3","versionType":"custom"}]}],"references":[{"url":"https://github.com/kubernetes/kubernetes/issues/133471","tags":["issue-tracking"]},{"url":"https://groups.google.com/g/kubernetes-security-announce/c/znSNY7XCztE","tags":["mailing-list"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"LOW","baseSeverity":"MEDIUM","baseScore":6.7,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-863","lang":"en","description":"CWE-863 Incorrect Authorization","type":"CWE"}]}],"providerMetadata":{"shortName":"kubernetes","orgId":"a6081bf6-c852-4425-ad4f-a67919267565","dateUpdated":"2025-08-27T16:20:56.778Z"},"datePublic":"2025-08-13T20:00:00.000Z","impacts":[{"capecId":"CAPEC-554","descriptions":[{"lang":"en","value":"CAPEC-554 Functionality Bypass"}]}],"solutions":[{"lang":"en","value":"To mitigate this vulnerability, upgrade Kubernetes:   https://kubernetes.io/docs/tasks/administer-cluster/cluster-upgrade/","supportingMedia":[{"type":"text/html","base64":false,"value":"To mitigate this vulnerability, upgrade Kubernetes:  <a target=\"_blank\" rel=\"nofollow\" href=\"https://kubernetes.io/docs/tasks/administer-cluster/cluster-upgrade/\">https://kubernetes.io/docs/tasks/administer-cluster/cluster-upgrade/</a><br>"}]}],"credits":[{"lang":"en","value":"Paul Viossat","type":"finder"}],"source":{"discovery":"INTERNAL"},"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2025-5187","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"version":"2.0.3","timestamp":"2025-08-28T03:55:27.614711Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-02-26T17:47:59.242Z"}}]}}}