{"id":"CVE-2024-48921","aliases":["BIT-kyverno-2024-48921","GHSA-qjvc-p88j-j9rm","GO-2024-3230"],"url":"https://o3.security/vulnerability/CVE-2024-48921","summary":"Kyverno's PolicyException objects can be created in any namespace by default","details":"### Summary\nA kyverno ClusterPolicy, ie. \"disallow-privileged-containers,\" can be overridden by the creation of a PolicyException in a random namespace.\n\n### Details\nBy design, PolicyExceptions are consumed from any namespace. Administrators may not recognize that this allows users with privileges to non-kyverno namespaces to create exceptions.\n\n### PoC\n1. Administrator creates \"disallow-privileged-containers\" ClusterPolicy that applies to resources in the namespace \"ubuntu-restricted\"\n2. Cluster user creates a PolicyException object for \"disallow-privileged-containers\" in namespace \"ubuntu-restricted\"\n3. Cluster user creates a pod with a privileged container in \"ubuntu-restricted\" \n4. Cluster user escalates to root on the node from the privileged container\n\n### Impact\nAdministrators attempting to enforce cluster security through kyverno policies, but that allow less privileged users to create resources","published":"2024-10-29T14:14:36.260Z","modified":"2026-08-12T03:51:24.930145538Z","cvss":null,"epss":{"score":0.00568,"percentile":0.44788,"asOf":"2026-09-01"},"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"Go","name":"github.com/kyverno/kyverno","fixedVersion":"1.13.0"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/48xxx/CVE-2024-48921.json"},{"type":"ADVISORY","url":"https://github.com/kyverno/kyverno/security/advisories/GHSA-qjvc-p88j-j9rm"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-48921"},{"type":"PACKAGE","url":"https://github.com/kyverno/kyverno"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:24.930145538Z"}}