---
id: CVE-2026-88264
title: A flaw was found in crun
summary: >-
  A flaw was found in crun. When the container configuration does not give /dev
  a dedicated mount, terminal setup can redirect /dev/console onto an
  attacker-controlled path, including via the read-only-rootfs bind-mount
  fallback. Affected …
severity: medium
cvss: 5.6
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N'
cwe:
  - CWE-59
vendor: containers
product: crun
affected:
  - crun <= 1.29.1
  - crun-main (all versions)
  - crun (all versions)
  - 'container-tools:rhel8/crun (all versions)'
  - crun (all versions)
  - crun (all versions)
  - openshift/ose-rhel-coreos-8 (all versions)
  - openshift/ose-rhel-coreos-9 (all versions)
published: '2026-09-10'
updated: '2026-09-25'
sourceUpdated: '2026-09-25T23:16:54.310'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-88264'
references:
  - url: 'https://access.redhat.com/errata/RHSA-2026:71668'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/security/cve/CVE-2026-88264'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2531223'
    label: secalert@redhat.com
  - url: 'https://github.com/containers/crun/'
    label: secalert@redhat.com
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-88264.json
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-88264'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-88264'
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-10T12:52:54.661757Z'
epss: 0.00121
epssPercentile: 0.01905
ingestedAt: '2026-09-13T19:07:38.702Z'
patched:
  - hardened_images
---

## Overview

A flaw was found in crun. When the container configuration does not give /dev a dedicated mount, terminal setup can redirect /dev/console onto an attacker-controlled path, including via the read-only-rootfs bind-mount fallback. Affected versions are crun 1.29.1 and earlier. Default configurations that mount a fresh /dev are not exposed. No fixed release is available yet.

## Remediation

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

## Vendor advisories

- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · updated 2026-09-25 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-88264.json)
- **RHSA-2026:71668** · Red Hat · fixed in: Red Hat Hardened Images · released 2026-09-24 · [advisory](https://access.redhat.com/errata/RHSA-2026:71668)