Paper/Archive/CVE-2026-24834

CVE-2026-24834

kata-containers kata-containers — Kata Container to Guest micro VM privilege escalation

Description · from the CVE record

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 this capability, a guest write could reach the image file). Version 3.27.0 patches the issue.

Affected

ProductAffectedFixed inSource
kata-containers< 3.27.0–CNA
Confidential Compute Attestationsee advisory–redhat-SADP
Red Hat OpenShift Container Platform 4see advisory–redhat-SADP

Scores by source

GitHub_M (CNA)9.4CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
redhat-SADP (CNA)9.3CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CISA ADPSSVCExploitation: poc · Automatable: no · Technical impact: total

References

refgithub.com/kata-containers/kata-containers/security/advisories/GHSA-wwj6-vghv-5p64refgithub.com/kata-containers/kata-containers/commit/6a672503973bf7c687053e459bfff8a9652e16bfrefgithub.com/kata-containers/kata-containers/releases/tag/3.27.0refaccess.redhat.com/security/cve/CVE-2026-24834refbugzilla.redhat.com/show_bug.cgi?id=2441025refsecurity.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-24834.json