High 8.8Published Jan 29, 2026

CVE-2026-24054Kata Containers Runtime: Host block device can be hotplugged to the VM if the container image is malformed or contains no layers

Updated under an hour ago (Oct 27, 2026, 8:50 PM ET)

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Exploited in the last 30 days

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 3.26.0, when a container image is malformed or contains no layers, containerd falls back to bind-mounting an empty snapshotter directory for the container rootfs. When the Kata runtime attempts to mount the container rootfs, the bind mount causes the rootfs to be detected as a block device, leading to the underlying device being hotplugged to the guest. This can cause filesystem-level errors on the host due to double inode allocation, and may lead to the host's block device being mounted as read-only. Version 3.26.0 contains a patch for the issue.

CVSS: 8.8 HIGH (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H/E:P
Weakness (CWE): CWE-754
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Jan 29, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

kata-containers kata-containers kata_containers:kata_containers (from the name)	before 3.26.0	CNA record
katacontainers kata_containers katacontainers:kata_containers	before 3.26.0	NVD

References

References

https://github.com/kata-containers/kata-containers/security/advisories/GHSA-5fc8-gg7w-3g5c	x-refsource-confirm, exploit, patch, vendor-advisory
https://github.com/kata-containers/kata-containers/commit/20ca4d2d79aa5bf63aa1254f08915da84f19e92a	x-refsource-misc, patch
https://github.com/containerd/containerd/blob/d939b6af5f8536c2cae85e919e7c40070557df0e/plugins/snapshots/overlay/overlay.go#L564-L581	x-refsource-misc, patch
https://github.com/kata-containers/kata-containers/blob/a164693e1afead84cd01d5bc3575e2cbfe64ce35/src/runtime/virtcontainers/container.go#L1122-L1126	x-refsource-misc, patch
https://github.com/kata-containers/kata-containers/blob/c7d0c270ee7dfaa6d978e6e07b99dabdaf2b9fda/src/runtime/virtcontainers/container.go#L1616-L1623	x-refsource-misc, patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.