{"id":"CVE-2026-53999","state":"PUBLISHED","title":"Radius Controller May Delete a Container Resource via an Injected Deployment Annotation (Multi-Tenant Installs)","description":"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.","publishedAt":"2026-10-14T18:39:25.344Z","updatedAt":"2026-10-14T19:42:38.965Z","severity":{"score":7.7,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["radius-project radius"],"affected":[{"vendor":"radius-project","product":"radius","versions":[{"version":"< 0.58.0","status":"affected"}]}],"references":["https://github.com/radius-project/radius/security/advisories/GHSA-fp5j-4fj2-4jvq","https://github.com/radius-project/radius/pull/11967","https://github.com/radius-project/radius/commit/c4174fc205b838d5eab4f64b4909001ab08c0587","https://github.com/radius-project/radius/releases/tag/v0.58.0"],"weaknesses":["CWE-20","CWE-441"],"ingestedAt":"2026-10-29T20:12:16.098Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/53xxx/CVE-2026-53999.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-53999","state":"PUBLISHED","datePublished":"2026-10-14T18:39:25.344Z","dateUpdated":"2026-10-14T19:42:38.965Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-06-11T16:34:11.635Z"},"containers":{"cna":{"title":"Radius Controller May Delete a Container Resource via an Injected Deployment Annotation (Multi-Tenant Installs)","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":[{"vendor":"radius-project","product":"radius","versions":[{"version":"< 0.58.0","status":"affected"}]}],"references":[{"url":"https://github.com/radius-project/radius/security/advisories/GHSA-fp5j-4fj2-4jvq","name":"https://github.com/radius-project/radius/security/advisories/GHSA-fp5j-4fj2-4jvq","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/radius-project/radius/pull/11967","name":"https://github.com/radius-project/radius/pull/11967","tags":["x_refsource_MISC"]},{"url":"https://github.com/radius-project/radius/commit/c4174fc205b838d5eab4f64b4909001ab08c0587","name":"https://github.com/radius-project/radius/commit/c4174fc205b838d5eab4f64b4909001ab08c0587","tags":["x_refsource_MISC"]},{"url":"https://github.com/radius-project/radius/releases/tag/v0.58.0","name":"https://github.com/radius-project/radius/releases/tag/v0.58.0","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.7,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-20","lang":"en","description":"CWE-20: Improper Input Validation","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-441","lang":"en","description":"CWE-441: Unintended Proxy or Intermediary ('Confused Deputy')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-10-14T18:39:25.344Z"},"source":{"advisory":"GHSA-fp5j-4fj2-4jvq","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/radius-project/radius/security/advisories/GHSA-fp5j-4fj2-4jvq","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-14T19:42:17.591600Z","id":"CVE-2026-53999","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-14T19:42:38.965Z"}}]}}}