K3s

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    Vulnerabilities

    CVE-2026-54250

    K3s: ZIP Archive Path Traversal Vulnerability in etcd Snapshot Decompression

    Last Modified: Jun 26, 2026
    Published: Jun 25, 2026

    CVE-2025-46599

    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.

    Last Modified: Apr 15, 2026
    Published: Apr 25, 2025

    CVE-2023-32187

    An Allocation of Resources Without Limits or Throttling vulnerability in SUSE k3s allows attackers with access to K3s servers' apiserver/supervisor port (TCP 6443) cause denial of service. This issue affects k3s: from v1.24.0 before v1.24.17+k3s1, from v1.25.0 before v1.25.13+k3s1, from v1.26.0 before v1.26.8+k3s1, from sev1.27.0 before v1.27.5+k3s1, from v1.28.0 before v1.28.1+k3s1.

    Last Modified: Nov 21, 2024
    Published: Sep 18, 2023
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    K3s Vulnerabilities & Security CVEs | CVE-DB