CVE-2026-24834
CRITICAL
GHSA-wwj6-vghv-5p64
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Lifecycle Timeline
4Description
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.
Analysis
Incorrect permissions in Kata Containers allow container escape via file permission manipulation. PoC and patch available.
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Remediation
Within 24 hours: inventory all systems running Kata Containers versions prior to 3.27.0 and assess which environments host untrusted workloads. Within 7 days: apply vendor patch 3.27.0 or later to all affected systems, prioritizing production environments and multi-tenant deployments. …
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External POC / Exploit Code
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