CVE-2026-41326 HIGH

CVE-2026-41326: Kata Containers: CopyFile Policy Subversion via Symlinks

Vendor Kata-Containers
Product kata-containers
Weakness CWE-61
Published April 24, 2026
Last update June 30, 2026
View on NVD All CVEs

CVSS base score

8.2/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS 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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

April 24, 2026 CVE published
June 30, 2026 Record updated