KubeEdge up to 1.21.1/1.22.1/1.23.0 NodeUpgradeJob nodeupgradejob.go v1alpha2 NodeUpgradeJob handler spec.version/spec.image os command injection

Summaryinfo

A vulnerability marked as very critical has been reported in KubeEdge up to 1.21.1/1.22.1/1.23.0. This issue affects the function v1alpha2 NodeUpgradeJob handler of the file edge/pkg/taskmanager/actions/nodeupgradejob.go of the component NodeUpgradeJob. This manipulation of the argument spec.version/spec.image causes os command injection. This vulnerability is handled as CVE-2026-62371. The attack can be initiated remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in KubeEdge up to 1.21.1/1.22.1/1.23.0 and classified as very critical. Affected by this vulnerability is the function v1alpha2 NodeUpgradeJob handler of the file edge/pkg/taskmanager/actions/nodeupgradejob.go of the component NodeUpgradeJob. The manipulation of the argument spec.version/spec.image with an unknown input leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

KubeEdge is an open source system for extending native containerized application orchestration capabilities to hosts at Edge. From 1.12.0 until 1.21.2, 1.22.2, and 1.23.1, the v1alpha2 NodeUpgradeJob handler in edge/pkg/taskmanager/actions/nodeupgradejob.go concatenates authenticated user-controlled spec.version and spec.image values into the keadm upgrade edge shell command. A user with permission to create or update NodeUpgradeJob resources can supply shell metacharacters in either field, causing arbitrary commands to execute on targeted edge nodes with the privileges of the upgrade process and compromising node confidentiality, integrity, and availability. This issue is fixed in versions 1.21.2, 1.22.2, and 1.23.1.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-62371 since 07/14/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation needs additional levels of successful authentication. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/21/2026). MITRE ATT&CK project uses the attack technique T1202 for this issue.

Upgrading to version 1.21.2, 1.22.2 or 1.23.1 eliminates this vulnerability.

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Productinfo

Name

• KubeEdge

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8
• 1.9
• 1.10
• 1.11
• 1.12
• 1.13
• 1.14
• 1.15
• 1.16
• 1.17
• 1.18
• 1.19
• 1.20
• 1.21
• 1.21.0
• 1.21.1
• 1.22
• 1.22.0
• 1.22.1
• 1.23.0

Website

• Product: https://github.com/kubeedge/kubeedge/

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