---
id: CVE-2026-53999
title: >-
  Radius is a cloud-native, portable application platform that makes app
  development easier for teams building cloud-native apps
summary: >-
  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 …
severity: high
cvss: 7.7
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H'
cwe:
  - CWE-20
  - CWE-441
vendor: radius-project
product: github.com/radius-project/radius
affected:
  - github.com/radius-project/radius < 0.58.0
patched:
  - github.com/radius-project/radius 0.58.0
published: '2026-10-14'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T20:04:29.760'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-53999'
references:
  - url: >-
      https://github.com/radius-project/radius/commit/c4174fc205b838d5eab4f64b4909001ab08c0587
    label: security-advisories@github.com
  - url: 'https://github.com/radius-project/radius/pull/11967'
    label: security-advisories@github.com
  - url: 'https://github.com/radius-project/radius/releases/tag/v0.58.0'
    label: security-advisories@github.com
  - url: >-
      https://github.com/radius-project/radius/security/advisories/GHSA-fp5j-4fj2-4jvq
    label: security-advisories@github.com
  - url: >-
      https://github.com/radius-project/radius/security/advisories/GHSA-fp5j-4fj2-4jvq
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: 'https://github.com/advisories/GHSA-fp5j-4fj2-4jvq'
tags:
  - nvd
  - ghsa
  - go
  - cve.org
  - exploit-available
epss: 0.0034
epssPercentile: 0.27381
aliases:
  - GHSA-fp5j-4fj2-4jvq
ecosystem: go
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-14T19:42:17.591600Z'
ingestedAt: '2026-07-07T15:41:59.002Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Package advisory (CVE-2026-53999)

Affected packages:

- `github.com/radius-project/radius < 0.58.0`

Patched in:

- `github.com/radius-project/radius 0.58.0`

Source: https://github.com/advisories/GHSA-fp5j-4fj2-4jvq