CVE-2026-77176

Summary

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.

Affected Software

Weaknesses

• CWE-73: External Control of File Name or Path

ADP Enrichment

CVE Program Container

Additional References

• http://www.openwall.com/lists/oss-security/2026/08/20/19

References

• https://access.redhat.com/security/cve/CVE-2026-77176
• https://bugzilla.redhat.com/show_bug.cgi?id=2517502
• https://github.com/kata-containers/kata-containers/security/advisories/GHSA-fmg6-v47x-52wr

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