---
id: CVE-2026-19617
title: A flaw was found in libdm
summary: >-
  A flaw was found in libdm. A local attacker could craft a malicious Logical
  Volume Manager (LVM) metadata configuration with deeply nested structures.
  This could lead to uncontrolled recursion in the libdm configuration file
  parser, exha…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'
cwe:
  - CWE-770
vendor: redhat
product: hardened_images
affected:
  - hardened_images
  - openshift_container_platform = 4.0
  - enterprise_linux = 6.0
  - enterprise_linux = 7.0
  - enterprise_linux = 8.0
  - enterprise_linux = 9.0
  - enterprise_linux = 10.0
published: '2026-08-14'
updated: '2026-10-02'
sourceUpdated: '2026-10-02T14:17:10.317'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-19617'
references:
  - url: 'https://access.redhat.com/errata/RHSA-2026:73989'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/security/cve/CVE-2026-19617'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2514626'
    label: secalert@redhat.com
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-19617.json
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-19617'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-19617'
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-08-14T13:55:16.916093Z'
epss: 0.0014
epssPercentile: 0.028
ingestedAt: '2026-10-02T14:20:32.554Z'
patched:
  - hardened_images
---

## Overview

A flaw was found in libdm. A local attacker could craft a malicious Logical Volume Manager (LVM) metadata configuration with deeply nested structures. This could lead to uncontrolled recursion in the libdm configuration file parser, exhausting the stack and causing any LVM command reading the metadata to crash. This vulnerability results in a Denial of Service (DoS) for affected systems.

## Affected

- `hardened_images`
- `openshift_container_platform = 4.0`
- `enterprise_linux = 6.0`
- `enterprise_linux = 7.0`
- `enterprise_linux = 8.0`
- `enterprise_linux = 9.0`
- `enterprise_linux = 10.0`

## Remediation

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

## Vendor advisories

- **RHSA-2026:73989** · Red Hat · fixed in: Red Hat Hardened Images · released 2026-09-30 · [advisory](https://access.redhat.com/errata/RHSA-2026:73989)
- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, 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 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, … · updated 2026-10-02 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-19617.json)