GHSA-864f-7xjm-2jp2
CNCF K3s Kubernetes kubelet configuration exposes credentials
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Go | github.com/k3s-io/k3s | >= 1.32.0-rc1, < 1.32.4-rc1 | 1.32.4-rc1 |
Details
As written in the advisory (Markdown source, shown as plain text).
CNCF K3s 1.32 before 1.32.4-rc1+k3s1 has a Kubernetes kubelet configuration change with the unintended consequence that, in some situations, ReadOnlyPort is set to 10255. For example, the default behavior of a K3s online installation might allow unauthenticated access to this port, exposing credentials.
References
External links from the advisory. They lead to third-party sites.
- https://nvd.nist.gov/vuln/detail/CVE-2025-46599
- https://github.com/f1veT/BUG/issues/2
- https://github.com/k3s-io/k3s/issues/12164
- https://github.com/k3s-io/k3s/commit/097b63e588e3c844cdf9b967bcd0a69f4fc0aa0a
- https://cloud.google.com/kubernetes-engine/docs/how-to/disable-kubelet-readonly-port
- https://github.com/k3s-io/k3s
- https://github.com/k3s-io/k3s/compare/v1.32.3+k3s1...v1.32.4-rc1+k3s1
- https://pkg.go.dev/vuln/GO-2025-3646