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CVE-2026-24834

Katacontainers Kata Containers vulnerability

9.3 CRITICALPublic exploitEPSS 0.23%
  1. Published19 Feb 2026

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 breakdown

Attack vectorLocal
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Affected products

Katacontainers Kata Containers< 3.27.0

Remediation

Fixed in
Katacontainers Kata Containers≥ 3.27.0

References

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Frequently asked

Is CVE-2026-24834 being actively exploited?

CVE-2026-24834 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.23%.

How severe is CVE-2026-24834?

CVE-2026-24834 has a CVSS 3.1 base score of 9.3, rated critical. EPSS estimates a 0.23% probability of exploitation.

Which products are affected by CVE-2026-24834?

Affected products include Katacontainers Kata Containers.

How do I fix CVE-2026-24834?

Upgrade affected software to a fixed version, for example Katacontainers Kata Containers 3.27.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-24834 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.