Kata Containers is an open source project focusing on a standard implementation of lightweight Virtual Machines (VMs) that perform like containers. From v3.4.0 to v3.28.0, an oversight in the CopyFile policy (and perhaps the CopyFile handler) allows untrusted hosts to write to arbitrary locations inside the guest workload image. This can be used to overwrite binaries inside the guest and exfiltrate data from containers; even those running inside CVMs. This vulnerability is fixed in v3.29.0.

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History

Mon, 27 Apr 2026 20:30:00 +0000

Type Values Removed Values Added
First Time appeared Katacontainers
Katacontainers kata-containers
Vendors & Products Katacontainers
Katacontainers kata-containers

Mon, 27 Apr 2026 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 24 Apr 2026 19:15:00 +0000

Type Values Removed Values Added
Description Kata Containers is an open source project focusing on a standard implementation of lightweight Virtual Machines (VMs) that perform like containers. From v3.4.0 to v3.28.0, an oversight in the CopyFile policy (and perhaps the CopyFile handler) allows untrusted hosts to write to arbitrary locations inside the guest workload image. This can be used to overwrite binaries inside the guest and exfiltrate data from containers; even those running inside CVMs. This vulnerability is fixed in v3.29.0.
Title Kata Containers: CopyFile Policy Subversion via Symlinks
Weaknesses CWE-61
References
Metrics cvssV4_0

{'score': 8.2, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:H/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-04-27T13:43:53.436Z

Reserved: 2026-04-20T14:01:46.672Z

Link: CVE-2026-41326

cve-icon Vulnrichment

Updated: 2026-04-27T13:43:41.648Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-04-24T19:17:12.253

Modified: 2026-04-27T18:57:20.293

Link: CVE-2026-41326

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-27T20:15:12Z

Weaknesses