CVE-2026-24834
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.22%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- EPSS
- 0.22% probability · 13th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-732, CWE-281
- Affected
- katacontainers/kata containers
- Source
- security-advisories@github.com
References
- https://github.com/kata-containers/kata-containers/commit/6a672503973bf7c687053e459bfff8a9652e16bfPatch
- https://github.com/kata-containers/kata-containers/releases/tag/3.27.0Product, Release Notes
- https://github.com/kata-containers/kata-containers/security/advisories/GHSA-wwj6-vghv-5p64Exploit, Vendor Advisory
- https://access.redhat.com/security/cve/CVE-2026-24834
- https://bugzilla.redhat.com/show_bug.cgi?id=2441025
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-24834.json
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.