{"id":"CVE-2026-53999","sourceIdentifier":"security-advisories@github.com","published":"2026-10-14T19:17:17.340","lastModified":"2026-10-16T20:04:29.760","vulnStatus":"Deferred","cveTags":[],"descriptions":[{"lang":"en","value":"Radius is a cloud-native, portable application platform that makes app development easier for teams building cloud-native apps. Prior to 0.58.0, the Kubernetes controller deserializes the user-controlled radapp.io/status annotation on a Deployment and uses its container resource identifier for deletion without confirming ownership by that Deployment. An attacker with permission to modify Deployment annotations and knowledge of a target Radius resource ID can forge radapp.io/status and set radapp.io/enabled to false, causing reconciliation to enter the privileged deletion path for another tenant's Radius-managed container resource. In a multi-tenant installation this confused-deputy condition can delete another team's recoverable container resource and disrupt service; in a single-tenant installation the impact is limited to self denial of service. The multi-tenant Radius controller reads the annotations in pkg/controller/reconciler/annotations.go and reaches the privileged delete in pkg/controller/reconciler/deployment_reconciler.go. The issue does not disclose data, grant privileges, or provide persistence. This issue is fixed in version 0.58.0."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"radius-project","product":"radius","versions":[{"version":"< 0.58.0","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","baseScore":7.7,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.1,"impactScore":4.0}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-10-14T19:42:17.591600Z","id":"CVE-2026-53999","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-20"},{"lang":"en","value":"CWE-441"}]}],"references":[{"url":"https://github.com/radius-project/radius/commit/c4174fc205b838d5eab4f64b4909001ab08c0587","source":"security-advisories@github.com"},{"url":"https://github.com/radius-project/radius/pull/11967","source":"security-advisories@github.com"},{"url":"https://github.com/radius-project/radius/releases/tag/v0.58.0","source":"security-advisories@github.com"},{"url":"https://github.com/radius-project/radius/security/advisories/GHSA-fp5j-4fj2-4jvq","source":"security-advisories@github.com"},{"url":"https://github.com/radius-project/radius/security/advisories/GHSA-fp5j-4fj2-4jvq","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}]}