crítica
CVE-2026-41323
Kyverno: ServiceAccount token leaked to external servers via apiCall service URL
En la Trivy database desde, como mínimo, el 24 oct 2026, 07:11 UTCNo consta cuándo entró antes de ese build.
Severidad por fuente
NVD9.1CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
GHSA8.1CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Bitnami9.1CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
La etiqueta propia de Trivy es CRITICAL. Crítica según NVD, Bitnami. Más baja según GHSA (alta).
Descripción
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.
Paquetes afectados y versiones corregidas
| Fuente | Paquete | Corregido en |
|---|---|---|
| bitnami::Bitnami Vulnerability Database | kyverno | 1.16.4, 1.17.2 |
| chainguard | kyverno-1.16, kyverno-1.17, kyverno-fips-1.17 y 2 más | 1.16.4-r1 y 3 más |
| go::GitHub Security Advisory Go | github.com/kyverno/kyverno | 1.17.0 |
| minimos | kyverno-1.16, kyverno-1.17, kyverno-fips-1.16 y 3 más | 1.16.4-r0 y 2 más |
| wolfi | kyverno-1.17, kyverno-notation-aws | 1.17.2-r1 y 1 más |
Mostrar las 15 entradas de 5 fuentes
| Fuente | Paquete | Corregido en |
|---|---|---|
| bitnami::Bitnami Vulnerability Database | kyverno | 1.16.4, 1.17.2 |
| chainguard | kyverno-1.16 | 1.16.4-r1 |
| chainguard | kyverno-1.17 | 1.17.2-r1 |
| chainguard | kyverno-fips-1.17 | 1.17.2-r1 |
| chainguard | kyverno-notation-aws | 1.1-r49 |
| chainguard | kyverno-notation-aws-fips | 1.1-r46 |
| go::GitHub Security Advisory Go | github.com/kyverno/kyverno | 1.17.0 |
| minimos | kyverno-1.16 | 1.16.4-r0 |
| minimos | kyverno-1.17 | 1.17.2-r0 |
| minimos | kyverno-fips-1.16 | 1.16.4-r0 |
| minimos | kyverno-fips-1.17 | 1.17.2-r0 |
| minimos | kyverno-notation-aws | 1.1-r1 |
| minimos | kyverno-notation-aws-fips | 1.1-r1 |
| wolfi | kyverno-1.17 | 1.17.2-r1 |
| wolfi | kyverno-notation-aws | 1.1-r49 |
Referencias
- https://github.com/kyverno/kyverno
- https://github.com/kyverno/kyverno/commit/bc4f91c4801b1eaa2edc0a14e2f1b0af8cf0c1f5
- https://github.com/kyverno/kyverno/commit/c2eab00033e635bda4e4efb58c1b472b41728bb6
- https://github.com/kyverno/kyverno/commit/f70e8ac1e7acd2e3844f9553e4a884f07f953de0
- https://github.com/kyverno/kyverno/security/advisories/GHSA-f9g8-6ppc-pqq4
- https://nvd.nist.gov/vuln/detail/CVE-2026-41323