CVE-2026-41326

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.

CVSS v3 8.2 HIGH

8.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/kata-containers/kata-containers/commit/1b9e49eb2763aa6ea6a99b276d3ff5e2c7f658f2	Patch
https://github.com/kata-containers/kata-containers/security/advisories/GHSA-q49m-57vm-c8cc	Third Party Advisory
http://www.openwall.com/lists/oss-security/2026/05/13/2	Mailing List Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:25200
https://access.redhat.com/security/cve/CVE-2026-41326
https://bugzilla.redhat.com/show_bug.cgi?id=2460859
https://github.com/kata-containers/kata-containers/security/advisories/GHSA-q49m-57vm-c8cc	Third Party Advisory
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-41326.json

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:katacontainers:confidential_containers::::::::
	cpe:2.3:a:katacontainers:kata_containers::::::::

History

No history.

Information

Published : 2026-04-24 19:17

Updated : 2026-08-24 13:18

NVD link : CVE-2026-41326

Mitre link : CVE-2026-41326

CVE.ORG link : CVE-2026-41326

JSON object : View

Products Affected

katacontainers

kata_containers
confidential_containers

CWE

CWE-61

UNIX Symbolic Link (Symlink) Following

CWE-1220

Insufficient Granularity of Access Control

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