{"id":"CVE-2026-53999","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-53999","generatedAt":"2026-10-28T00:20:15.098Z","title":"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.","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.","published":"2026-10-14T19:17:17.000Z","lastModified":"2026-10-16T20:04:30.000Z","status":"Deferred","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":7.7,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H"},"cwe":["CWE-20","CWE-441"],"affected":[],"epss":{"score":0.0034,"percentile":0.27319,"date":"2026-10-26","history":[{"date":"2026-10-15","score":0.0034,"percentile":0.25901}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.34%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-14T19:17:17.000Z","detail":{"score":"7.7","severity":"HIGH","publishedAt":"2026-10-14T19:17:17.340Z"},"summary":"New CVE, high severity (CVSS 7.7)."}],"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"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-53999","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}