Beschreibung
Kyverno is a policy engine designed for cloud native platform engineering teams. Prior to versions 1.18.0-rc1, 1.17.2-rc1, and 1.16.4, Kyverno-s apiCall feature in ClusterPolicy automatically attaches the admission controller-s ServiceAccount token to outgoing HTTP requests. The service URL has no validation — it can point anywhere, including attacker-controlled servers. Since the admission controller SA has permissions to patch webhook configurations, a stolen token leads to full cluster compromise. Versions 1.18.0-rc1, 1.17.2-rc1, and 1.16.4 patch the issue.
CVSS 8.1EPSS 0.5599999999999999%Risiko 0.85
Quelle öffnen- Veröffentlicht
- 2026-04-24 04:16:20
- Betroffene Versionen
- <1.18.0-rc1,<1.17.2-rc1,<1.16.4
- Typ
- Core software
- Vektor
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N