---
id: CVE-2026-77176
title: >-
  Kata-containers: insufficient validation of createcontainer mount and storage
  rules in genpolicy
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 allow…
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'
cvssSource: cna
cwe:
  - CWE-73
vendor: Red Hat
product: kata-containers
affected:
  - kata-containers
  - openshift/ose-rhel-coreos-8 (all versions)
  - openshift/ose-rhel-coreos-9 (all versions)
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-08-21T15:45:24.984463Z'
published: '2026-08-20'
updated: '2026-10-26'
sourceUpdated: '2026-10-26T17:52:28.746Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-77176'
references:
  - url: 'https://access.redhat.com/security/cve/CVE-2026-77176'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2517502'
    label: RHBZ#2517502
  - url: >-
      https://github.com/kata-containers/kata-containers/security/advisories/GHSA-fmg6-v47x-52wr
tags:
  - cve.org
epss: 0.00478
epssPercentile: 0.41053
ingestedAt: '2026-10-26T18:35:51.660Z'
---

## Overview

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

- `kata-containers`
- `openshift/ose-rhel-coreos-8 (all versions)`
- `openshift/ose-rhel-coreos-9 (all versions)`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.