Secuno
ENNL
Book demo

CVE-2026-44210

Katacontainers Kata Containers vulnerability

9.9 CRITICALPublic exploitEPSS 0.59%
  1. Published23 Jul 2026

Description

Kata Containers is an open source project focusing on a standard implementation of lightweight Virtual Machines (VMs) that perform like containers. Versions prior to 3.31.0 ship with a default configuration that allows pod creators to inject arbitrary command-line arguments into the virtiofsd process through the `io.katacontainers.config.hypervisor.virtio_fs_extra_args` pod annotation. By injecting `-o source=/` along with `--no-announce-submounts` and `--sandbox=none`, an attacker can override the virtiofsd shared directory to serve the entire host root filesystem into the guest VM. Combined with the `kernel_params` annotation (also enabled by default) to activate the agent debug console, the attacker can mount the host filesystem from inside the VM and read or write any file on the host, including /etc/shadow. Version 3.31.0 patches the issue.

CVSS 3.1 breakdown

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

Affected products

Katacontainers Kata Containers< 3.31.0

Remediation

Fixed in
Katacontainers Kata Containers≥ 3.31.0

References

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

CVE-2026-1089299.9
A flaw has been found in Netcore NR268 1.7.121109. The affected element is the function…
CVE-2026-1089638.8
databasement before 1.8.2 allows remote code execution because it runs certain commands…
CVE-2026-194828.8
IBM Security Verify Access 10.0 through 10.0.9.2 and IBM Verify Identity Access 11.0…
CVE-2026-187408.8
IBM Security Verify Access 10.0 through 10.0.9.2 and IBM Verify Identity Access 11.0…
CVE-2026-1076398.8
ILIAS before 9.24, 10.x before 10.12 and 11.x before 11.5 contains an argument…
CVE-2026-1075109.1
An authenticated high privilege user can inject arguments in troubleshooting commands…

Frequently asked

Is CVE-2026-44210 being actively exploited?

CVE-2026-44210 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.59%.

How severe is CVE-2026-44210?

CVE-2026-44210 has a CVSS 3.1 base score of 9.9, rated critical. EPSS estimates a 0.59% probability of exploitation.

Which products are affected by CVE-2026-44210?

Affected products include Katacontainers Kata Containers.

How do I fix CVE-2026-44210?

Upgrade affected software to a fixed version, for example Katacontainers Kata Containers 3.31.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-44210 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.

See how prioritisation worksBook a demo

Get Patch this first every Monday

Five vulnerabilities that matter this week, ranked on real exploitation. Plain language, one email, no spam.

You can unsubscribe with one click from every issue. We handle your details as described in our privacy policy.

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