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CVE-2026-24834— Kata Container to Guest micro VM privilege escalation

Quick assessment

Affected
kata-containers kata-containers
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Kata Containers是Kata Containers社区的一款开源的轻量级虚拟机构建程序。 Kata Containers 3.27.0之前版本存在安全漏洞，该漏洞源于与Cloud Hypervisor交互时的问题，可能导致容器用户修改Guest微VM使用的文件系统，最终在该VM中以root权限执行任意代码。

CVSS 9.4 · Critical EPSS 0.24% · P15

Affected Version Matrix 1

VendorProduct Version RangeStatus
kata-containers kata-containers < 3.27.0 affected
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I. Basic Information for CVE-2026-24834

Vulnerability Information
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Vulnerability Title
Kata Container to Guest micro VM privilege escalation
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
关键资源的不正确权限授予
Source: CVE Program / CVE List V5
Vulnerability Title
Kata Containers 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Kata Containers是Kata Containers社区的一款开源的轻量级虚拟机构建程序。 Kata Containers 3.27.0之前版本存在安全漏洞，该漏洞源于与Cloud Hypervisor交互时的问题，可能导致容器用户修改Guest微VM使用的文件系统，最终在该VM中以root权限执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
kata-containers kata-containers < 3.27.0 -

II. Public POCs for CVE-2026-24834

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III. Intelligence Information for CVE-2026-24834

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Patches & Fixes for CVE-2026-24834 (1)

Vendor Advisories for CVE-2026-24834 (1)

IV. Related Vulnerabilities

Same product: kata-containers
Same vendor: kata-containers
Same weakness: CWE-732

V. Comments for CVE-2026-24834

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