What is CVE-2026-64676?

CVE-2026-64676 is a medium-severity vulnerability in Kata-containers, classified under Missing Authorization. CVSS score: 5.7/10. Published 2026-08-07.

How severe is CVE-2026-64676?

Medium severity. CVSS v3 base score is 5.7 out of 10.

Auth bypass in Kata-containers

CVE-2026-64676

Kata Containers is an open source implementation of lightweight Virtual Machines (VMs) that perform like containers. In versions prior to 4.0.0, the kata-agent is vulnerable to an authorization bypass in confidential-guest memory managemen…

Vulnerability class: Broken Access Control

CVSS v3 metric

CVSS v3 base score 5.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L.

Affected products

Kata-containers — versions < 4.0.0

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-64676?: CVE-2026-64676 is a medium-severity vulnerability in Kata-containers, classified under Missing Authorization. CVSS score: 5.7/10. Published 2026-08-07.
How severe is CVE-2026-64676?: Medium severity. CVSS v3 base score is 5.7 out of 10.