CVE-2026-15687 - Vulnerability Details - OpenCVE

A security issue was discovered in the Kubernetes Java client library where a compromised pod may be able to create new files in arbitrary locations on the client machine executing copy operations via non-tar copyDirectoryFromPod when enableTarCompressing is false.

No CVSS v4.0

No CVSS v3.1

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Kubernetes

kubernetes-client/java

unaffected

Version	Status	Constraints
`10.0.0`	affected	< 25.0.1
`26.0.0`	affected	—
`25.0.1`	unaffected	—
`26.0.1`	unaffected	—
`27.0.0`	unaffected	—

No data.

No data.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

Prior to upgrading, this vulnerability can be mitigated by ensuring you only copy files from trusted pods, or by ensuring tar is available in the container to use the secure tar-based copy path.

References

Link	Providers
https://github.com/kubernetes-client/java/issues/4861

History

Thu, 23 Jul 2026 21:45:00 +0000

Type	Values Removed	Values Added
Description		A security issue was discovered in the Kubernetes Java client library where a compromised pod may be able to create new files in arbitrary locations on the client machine executing copy operations via non-tar copyDirectoryFromPod when enableTarCompressing is false.
Title		Path traversal via non-tar copyDirectoryFromPod
Weaknesses		CWE-22
References		https://github.com/kubernetes-client/java/issues/4861
Metrics		cvssV3_0 `{'score': 2.7, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: kubernetes

Published: 2026-07-23T18:43:25.357Z

Updated: 2026-07-23T19:03:12.469Z

Reserved: 2026-07-13T23:31:31.228Z

Link: CVE-2026-15687

Vulnrichment

Updated: 2026-07-23T19:03:09.190Z

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-22

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