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Vulnerability record · CVE-2026-24054 · published 29 January 2026

CVE-2026-24054: Katacontainers kata containers vulnerability

Katacontainers · Kata Containers

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.

8.8 CVSS 4.0 High EPSS 0.50% · top 59.5% CWE-754 · CWE-754
8.8CVSS 4.0 base score
0.50%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
5References, 1 tagged exploit
17 Jun 2026Last modified by NVD

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 3.26.0, 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: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/containerd/containerd/blob/d939b6af5f8536c2cae85e919e7c40070557df0e/plugins/snapshots/overlay/overlay Patch
https://github.com/kata-containers/kata-containers/blob/a164693e1afead84cd01d5bc3575e2cbfe64ce35/src/runtime/virtcontain Patch
https://github.com/kata-containers/kata-containers/blob/c7d0c270ee7dfaa6d978e6e07b99dabdaf2b9fda/src/runtime/virtcontain Patch
https://github.com/kata-containers/kata-containers/commit/20ca4d2d79aa5bf63aa1254f08915da84f19e92a Patch
https://github.com/kata-containers/kata-containers/security/advisories/GHSA-5fc8-gg7w-3g5c ExploitPatchVendor Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-24054), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.