k3s-io/k3s · Security
CNCF K3s Kubernetes kubelet configuration exposes credentials
- GHSA ID
- GHSA-864f-7xjm-2jp2
- CVE ID
- CVE-2025-46599
- Severity
- medium
- Published
- Updated
- CVSS
- 6.8 · CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
- CVSS v3
- 6.8 · CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
Description
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.
CWEs
- CWE-1188 · Initialization of a Resource with an Insecure Default
References
- 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/compare/v1.32.3+k3s1...v1.32.4-rc1+k3s1 ↗
- https://pkg.go.dev/vuln/GO-2025-3646 ↗
- https://github.com/advisories/GHSA-864f-7xjm-2jp2 ↗