medium6.8
CVE-2025-46599
CNCF K3s Kubernetes kubelet configuration exposes credentials
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | github.com/k3s-io/k3s | >= 1.32.0-rc1, < 1.32.4-rc1 | 1.32.4-rc1 |
Affected products
| Product | Affected versions |
|---|---|
| CNCF K3s 1.32 | before 1.32.4-rc1 |
Versions were read from the advisory text. No structured product data has been published for this record yet.
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://cloud.google.com/kubernetes-engine/docs/how-to/disable-kubelet-readonly-port
- https://github.com/f1veT/BUG/issues/2
- https://github.com/k3s-io/k3s/commit/097b63e588e3c844cdf9b967bcd0a69f4fc0aa0a
- https://github.com/k3s-io/k3s/compare/v1.32.3+k3s1...v1.32.4-rc1+k3s1
- https://github.com/k3s-io/k3s/issues/12164
- https://github.com/advisories/GHSA-864f-7xjm-2jp2
- https://nvd.nist.gov/vuln/detail/CVE-2025-46599
- https://pkg.go.dev/vuln/GO-2025-3646