Review reviewHigh

CVE-2026-24834

kata-containers kata-containers, Confidential Compute Attestation, Red Hat OpenShift Container Platform 4

Kata Containers is an open source project focusing on a standard implementation of lightweight Virtual Machines (VMs) that perform like containers. In versions prior to 3.27.0, an issue in Kata with Cloud Hypervisor allows a user of the container to modify the file system used by the Guest micro VM ultimately achieving arbitrary code execution as root in said VM. The current understanding is this doesn’t impact the security of the Host or of other containers / VMs running on that Host (note that arm64 QEMU lacks NVDIMM read-only support: It is believed that until the upstream QEMU gains thi...

CVSS: 8.8
EPSS: 0.22%
CISA KEV: Not listed
Published: 2026.02.20

PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability0.22%

Technical severityCVSS 8.8

Vulnerability overview

Affected product and versions

Product: kata-containers kata-containers, Confidential Compute Attestation, Red Hat OpenShift Container Platform 4
Affected versions: >= < 3.27.0, < 3.27.0
Fixed versions: 3.27.0

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

1
Identify
Confirm that kata-containers kata-containers, Confidential Compute Attestation, Red Hat OpenShift Container Platform 4 and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE: CWE-281, CWE-732