CVE-2026-44543— Local Path Provisioner: HelperPod Template Injection

Local Path Provisioner: HelperPod Template Injection

Local Path Provisioner provides a way for the Kubernetes users to utilize the local storage in each node. Prior to 0.0.36, a malicious user with permission to edit the local-path-config ConfigMap in the local-path-storage namespace can manipulate the helperPod.yaml template used by rancher/local-path-provisioner. The helperPod.yaml template is loaded by the provisioner and used to create HelperPods during PVC provisioning and cleanup operations. However, the template is not sufficiently validated before use. Security-sensitive fields such as securityContext.privileged, hostPath volumes, and Linux capabilities can be injected into the template. When a PVC operation triggers HelperPod creation, the provisioner creates the HelperPod using the attacker-controlled template. This can result in a privileged pod running on the target node with the host root filesystem mounted. This may allow the attacker to access sensitive host files, read ServiceAccount tokens from other pods on the same node, access other tenants' local-path volume data, or modify files on the host node. This vulnerability is fixed in 0.0.36.

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N

特权管理不恰当

Local Path Provisioner 安全漏洞

Local Path Provisioner是Rancher开源的一款Kubernetes本地存储动态供应工具。 Local Path Provisioner 0.0.36之前版本存在安全漏洞，该漏洞源于对helperPod.yaml模板验证不足，允许恶意用户通过编辑local-path-config ConfigMap注入安全敏感字段如securityContext.privileged、hostPath卷和Linux capabilities，导致创建特权pod并挂载主机根文件系统，可能访问敏感主机文

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