---
id: CVE-2026-89329
title: A flaw was found in `multipathd`
summary: >-
  A flaw was found in `multipathd`. A local attacker with access to the
  `multipathd` UNIX control socket can exploit this vulnerability by sending
  valid commands and then ceasing to read replies. This action can cause the
  `multipathd` list…
severity: medium
cvss: 6.2
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-1322
vendor: Red Hat
product: device-mapper-multipath
affected:
  - device-mapper-multipath (all versions)
  - device-mapper-multipath
  - device-mapper-multipath (all versions)
  - device-mapper-multipath (all versions)
  - device-mapper-multipath (all versions)
  - openshift/ose-rhel-coreos-8 (all versions)
  - openshift/ose-rhel-coreos-9 (all versions)
published: '2026-09-11'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T19:42:43.623'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-89329'
references:
  - url: 'https://access.redhat.com/security/cve/CVE-2026-89329'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2470013'
    label: secalert@redhat.com
tags:
  - nvd
  - cve.org
epss: 0.00117
epssPercentile: 0.01907
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-11T19:35:10.339148Z'
ingestedAt: '2026-09-14T00:35:28.533Z'
---

## Overview

A flaw was found in `multipathd`. A local attacker with access to the `multipathd` UNIX control socket can exploit this vulnerability by sending valid commands and then ceasing to read replies. This action can cause the `multipathd` listener thread to block, leading to a Denial of Service (DoS) where legitimate Inter-Process Communication (IPC) operations may hang or time out. This issue does not result in privilege escalation, arbitrary code execution, or impact data confidentiality or integrity.

## Remediation

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