KubeEdge up to 1.21.1/1.22.1/1.23.0 Archive Extraction common.go DecompressTarGz path traversal

Summaryinfo

A vulnerability classified as problematic was found in KubeEdge up to 1.21.1/1.22.1/1.23.0. The impacted element is the function DecompressTarGz of the file keadm/cmd/keadm/app/cmd/util/common.go of the component Archive Extraction. Executing a manipulation can lead to path traversal. The identification of this vulnerability is CVE-2026-62369. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in KubeEdge up to 1.21.1/1.22.1/1.23.0. It has been declared as problematic. This vulnerability affects the function DecompressTarGz of the file keadm/cmd/keadm/app/cmd/util/common.go of the component Archive Extraction. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect integrity, and availability. CVE summarizes:

KubeEdge is an open source system for extending native containerized application orchestration capabilities to hosts at Edge. From 1.16.0 until 1.21.2, 1.22.2, and 1.23.1, the DecompressTarGz function in keadm/cmd/keadm/app/cmd/util/common.go joins archive entry names to the extraction destination without sufficient validation. During keadm join or installation on Windows edge nodes, an archive influenced through a compromised, replaced, or untrusted download source can contain parent-directory components, Windows-style backslashes, absolute paths, or drive-prefixed paths that escape the intended directory. The affected keadm process can consequently write or overwrite files with its own privileges, potentially modifying configuration, executable, or service files and enabling persistent system modification or code execution. This issue is fixed in versions 1.21.2, 1.22.2, and 1.23.1.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-62369 since 07/14/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1006.

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

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-84005). VulDB is the best source for vulnerability data and more expert information about this specific topic.

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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