CVE-2023-3893
HIGH8.8EPSS 3.7%Kubernetes csi-proxy vulnerable to privilege escalation due to improper input validation
Published: 11/3/2023Modified: 7/9/2025
Description
Kubernetes is vulnerable to privilege escalation when a user that can create pods on Windows nodes running kubernetes-csi-proxy may be able to escalate to admin privileges on those nodes. Kubernetes clusters are only affected if they include Windows nodes running kubernetes-csi-proxy.
Affected packages (5)
- Debian/kubernetesfrom 0, < 1.20.5+really1.20.2-1
- Go/github.com/kubernetes-csi/csi-proxy>= 0.1.0-rc1, < 1.1.3
- Go/github.com/kubernetes-csi/csi-proxyfrom 0, < 1.1.3
- Go/github.com/kubernetes-csi/csi-proxy/v2>= 2.0.0-alpha.0, < 2.0.0-alpha.1
- Go/github.com/kubernetes-csi/csi-proxy/v2>= 2.0.0-alpha.0, < 2.0.0-alpha.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
References (9)
- ADVISORYhttps://github.com/advisories/GHSA-r6cc-7wj7-gfx2
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2023-3893
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2023-3893
- PATCHhttps://github.com/kubernetes-csi/csi-proxy
- WEBhttps://github.com/kubernetes-csi/csi-proxy/commit/0e83a68159111e4ee510f5aa56d47ba97bda60c7
- WEBhttps://github.com/kubernetes-csi/csi-proxy/commit/2523e6674dedf3de27f84235efec28555da24664
- WEBhttps://github.com/kubernetes/kubernetes/issues/119594
- WEBhttps://groups.google.com/g/kubernetes-security-announce/c/lWksE2BoCyQ
- WEBhttps://security.netapp.com/advisory/ntap-20231221-0004