CVE-2026-15687
2.7
CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Kubernetes | kubernetes-client/java | 10.0.0 < 25.0.1 | affected |
| Kubernetes | kubernetes-client/java | 26.0.0 | affected |
| Kubernetes | kubernetes-client/java | 25.0.1 | unaffected |
| Kubernetes | kubernetes-client/java | 26.0.1 | unaffected |
| Kubernetes | kubernetes-client/java | 27.0.0 | unaffected |
Weaknesses
- CWE-22: CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Workarounds
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.
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
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