{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-44949","assignerOrgId":"404e59f5-483d-4b8a-8e7a-e67604dd8afb","state":"PUBLISHED","assignerShortName":"suse","dateReserved":"2026-05-08T12:29:48.969Z","datePublished":"2026-06-30T14:41:34.007Z","dateUpdated":"2026-06-30T15:10:17.154Z"},"containers":{"cna":{"providerMetadata":{"orgId":"404e59f5-483d-4b8a-8e7a-e67604dd8afb","shortName":"suse","dateUpdated":"2026-06-30T14:41:34.007Z"},"title":"Unauthenticated namespace creation and RBAC injection via rancher-webhook FleetWorkspace mutating webhook","datePublic":"2026-06-29T14:27:00.000Z","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-306","description":"CWE-306 Missing authentication for critical function","type":"CWE"}]}],"impacts":[{"capecId":"CAPEC-233","descriptions":[{"lang":"en","value":"CAPEC-233 Privilege Escalation"}]}],"affected":[{"vendor":"SUSE","product":"Rancher","packageName":"Webhook","repo":"https://github.com/rancher/webhook/","versions":[{"status":"affected","version":"0.7.0","lessThan":"0.7.10","versionType":"semver"},{"status":"affected","version":"0.8.0","lessThan":"0.8.7","versionType":"semver"},{"status":"affected","version":"0.9.0","lessThan":"0.9.6","versionType":"semver"},{"status":"affected","version":"0.10.0","lessThan":"0.10.7","versionType":"semver"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"A Rancher FleetWorkspace admission path allowed side effects to occur in\n the Rancher webhook handler for versions 0.7.0 up to 0.7.10, 0.8.0 up to 0.8.7, 0.9.0 up to 0.9.6 and 0.10.0 up to 0.10.7. An unauthenticated attacker with network access to\n the in-cluster rancher-webhook service\n could submit a crafted admission payload and cause workspace-related \nKubernetes objects to be created with attacker-chosen identity data.","supportingMedia":[{"type":"text/html","base64":false,"value":"A Rancher FleetWorkspace admission path allowed side effects to occur in\n the Rancher webhook handler for versions 0.7.0 up to 0.7.10, 0.8.0 up to 0.8.7, 0.9.0 up to 0.9.6 and 0.10.0 up to 0.10.7. An unauthenticated attacker with network access to\n the in-cluster <code>rancher-webhook</code> service\n could submit a crafted admission payload and cause workspace-related \nKubernetes objects to be created with attacker-chosen identity data."}]}],"references":[{"url":"https://github.com/rancher/webhook/security/advisories/GHSA-h83p-cq95-vph4","tags":["vendor-advisory"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","subIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"HIGH","baseScore":7,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N"}}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.2"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-30T15:10:07.132296Z","id":"CVE-2026-44949","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-06-30T15:10:17.154Z"}}]}}