Status: UPDATED | Advisory ID: CVE-2026-41323
| CVE | CVE-2026-41323 |
| CVSS Score / Version | 8.1 (High) / CVSS v3.1 |
| Updated | 2026-06-17 |
| CVSS Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |
| CVSS Prose | attack vector is network; attack complexity is low; privileges required is low; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is none. |
| Affected products | kyverno kyverno |
| Classified as | CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) |
| Vendor | Product | Affected Versions | Patch Status |
|---|---|---|---|
| kyverno | kyverno |
| Subsystems | General OT |
| Sectors | Multiple |
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. (NVD)
Monitor kyverno's web page for any future patch releases. See vendor advisory link below.