CVE-2023-2728
MEDIUM6.5EPSS 4.9%Kubernetes mountable secrets policy bypass in k8s.io/kubernetes
Published: 7/3/2023Modified: 4/28/2026
Description
Users may be able to launch containers that bypass the mountable secrets policy enforced by the ServiceAccount admission plugin when using ephemeral containers. The policy ensures pods running with a service account may only reference secrets specified in the service account’s secrets field. Kubernetes clusters are only affected if the ServiceAccount admission plugin and the `kubernetes.io/enforce-mountable-secrets` annotation are used together with ephemeral containers.
Affected packages (3)
- Debian/kubernetesfrom 0, < 1.20.5+really1.20.2-1
- Go/k8s.io/kubernetes>= 1.27.0, < 1.27.3
- Go/k8s.io/kubernetesfrom 0, < 1.24.15, >= 1.25.0, < 1.25.11, >= 1.26.0, < 1.26.6, >= 1.27.0, < 1.27.3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N |
References (13)
- ADVISORYhttps://github.com/advisories/GHSA-cgcv-5272-97pr
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2023-2728
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2023-2728
- PATCHhttps://github.com/kubernetes/kubernetes
- WEBhttps://github.com/kubernetes/kubernetes/issues/118640
- WEBhttps://github.com/kubernetes/kubernetes/pull/118356
- WEBhttps://github.com/kubernetes/kubernetes/pull/118471
- WEBhttps://github.com/kubernetes/kubernetes/pull/118473
- WEBhttps://github.com/kubernetes/kubernetes/pull/118474
- WEBhttps://github.com/kubernetes/kubernetes/pull/118512
- WEBhttps://groups.google.com/g/kubernetes-security-announce/c/vPWYJ_L84m8
- WEBhttps://security.netapp.com/advisory/ntap-20230803-0004
- WEBhttp://www.openwall.com/lists/oss-security/2023/07/06/3