{"id":"CVE-2025-46599","aliases":["GHSA-864f-7xjm-2jp2","GO-2025-3646"],"title":"CNCF K3s Kubernetes kubelet configuration exposes credentials","summary":"CNCF K3s Kubernetes kubelet configuration exposes credentials","severity":"medium","cvss":6.8,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N","vendor":"k3s-io","product":"github.com/k3s-io/k3s","ecosystem":"go","affected":["github.com/k3s-io/k3s >= 1.32.0-rc1, < 1.32.4-rc1"],"patched":["github.com/k3s-io/k3s 1.32.4-rc1"],"published":"2025-04-25","updated":"2026-09-10","sourceUpdated":"2026-09-10T03:50:23.716034197Z","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GHSA-864f-7xjm-2jp2","references":[{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-46599"},{"url":"https://github.com/f1veT/BUG/issues/2"},{"url":"https://github.com/k3s-io/k3s/issues/12164"},{"url":"https://github.com/k3s-io/k3s/commit/097b63e588e3c844cdf9b967bcd0a69f4fc0aa0a"},{"url":"https://cloud.google.com/kubernetes-engine/docs/how-to/disable-kubelet-readonly-port"},{"url":"https://github.com/k3s-io/k3s"},{"url":"https://github.com/k3s-io/k3s/compare/v1.32.3+k3s1...v1.32.4-rc1+k3s1"},{"url":"https://pkg.go.dev/vuln/GO-2025-3646"}],"tags":["osv","go"],"epss":0.00451,"epssPercentile":0.38539,"ingestedAt":"2026-09-12T03:13:01.766Z","slug":"CVE-2025-46599","body":"## Overview\n\nCNCF 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.\n\n## Affected packages\n\n- `github.com/k3s-io/k3s >= 1.32.0-rc1, < 1.32.4-rc1`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `github.com/k3s-io/k3s 1.32.4-rc1`","depth":"sunlit","depthScore":37,"depthScoreParts":{"impact":37.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}