CVE-2025-46599

Severity: medium (CVSS 6.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-04-25 · updated 2026-06-17
Weakness: CWE-1188

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.

Affected products

SUSE k3s: from 1.32 before 1.32.4-rc1+k3s — fixed in 1.32.4-rc1+k3s

How to fix

Upgrade to a fixed version: SUSE k3s 1.32.4-rc1+k3s. Check the vendor advisory for mitigations.

References

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

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