CVE-2026-22039
Kyverno Cross-Namespace Privilege Escalation via Policy apiCall
Sévérité par source
Le label propre à Trivy est CRITICAL. Critique selon GHSA, Bitnami.
Description
Kyverno is a policy engine designed for cloud native platform engineering teams. Versions prior to 1.16.3 and 1.15.3 have a critical authorization boundary bypass in namespaced Kyverno Policy apiCall. The resolved `urlPath` is executed using the Kyverno admission controller ServiceAccount, with no enforcement that the request is limited to the policy’s namespace. As a result, any authenticated user with permission to create a namespaced Policy can cause Kyverno to perform Kubernetes API requests using Kyverno’s admission controller identity, targeting any API path allowed by that ServiceAccount’s RBAC. This breaks namespace isolation by enabling cross-namespace reads (for example, ConfigMaps and, where permitted, Secrets) and allows cluster-scoped or cross-namespace writes (for example, creating ClusterPolicies) by controlling the urlPath through context variable substitution. Versions 1.16.3 and 1.15.3 contain a patch for the vulnerability.
Paquets affectés et versions corrigées
| Source | Paquet | Corrigé en |
|---|---|---|
| bitnami::Bitnami Vulnerability Database | kyverno | 1.15.3, 1.16.3 |
| go::GitHub Security Advisory Go | github.com/kyverno/kyverno | 1.15.3, 1.16.3 |
| chainguard | kyverno-1.13, kyverno-1.14, kyverno-fips-1.14 et 4 autres | 1.13.6-r13 et 5 autres |
| minimos | kyverno-1.15, kyverno-1.16, kyverno-fips-1.15 et 3 autres | 1.15.3-r0 et 2 autres |
| wolfi | kyverno-notation-aws | 1.1-r33 |
Afficher les 16 entrées de 5 sources
| Source | Paquet | Corrigé en |
|---|---|---|
| bitnami::Bitnami Vulnerability Database | kyverno | 1.15.3, 1.16.3 |
| go::GitHub Security Advisory Go | github.com/kyverno/kyverno | 1.15.3, 1.16.3 |
| chainguard | kyverno-1.13 | 1.13.6-r13 |
| chainguard | kyverno-1.14 | 1.14.5-r5 |
| chainguard | kyverno-fips-1.14 | 1.14.5-r5 |
| chainguard | kyverno-fips-1.16 | 1.16.3-r0 |
| chainguard | kyverno-notation-aws | 1.1-r33 |
| chainguard | kyverno-notation-aws-fips | 1.1-r32 |
| chainguard | reports-server | 0 |
| minimos | kyverno-1.15 | 1.15.3-r0 |
| minimos | kyverno-1.16 | 1.16.3-r0 |
| minimos | kyverno-fips-1.15 | 1.15.3-r0 |
| minimos | kyverno-fips-1.16 | 1.16.3-r0 |
| minimos | kyverno-notation-aws | 1.1-r1 |
| minimos | kyverno-notation-aws-fips | 1.1-r1 |
| wolfi | kyverno-notation-aws | 1.1-r33 |
Références
- https://github.com/kyverno/kyverno
- https://github.com/kyverno/kyverno/commit/e0ba4de4f1e0ca325066d5095db51aec45b1407b
- https://github.com/kyverno/kyverno/commit/eba60fa856c781bcb9c3be066061a3df03ae4e3e
- https://github.com/kyverno/kyverno/security/advisories/GHSA-8p9x-46gm-qfx2
- https://nvd.nist.gov/vuln/detail/CVE-2026-22039