Vulnerability in Red Hat Openshift Container Platform 4

CVE-2026-77176

A flaw was found in Kata Containers. In configurations utilizing genpolicy for Confidential Containers guest protection, a malicious host operator can exploit insufficient validation of CreateContainer mount and storage rules. This allows them to mount arbitrary container-rootfs paths over sensitive host locations or provision arbitrary content, potentially exposing confidential information or enabling the acceptance of attacker-controlled input.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-77176?
CVE-2026-77176 is a high-severity vulnerability in Red Hat Openshift Container Platform 4, classified under External Control of File Name or Path. CVSS score: 8.1/10. Published 2026-08-20.
How severe is CVE-2026-77176?
High severity. CVSS v3 base score is 8.1 out of 10.