id: PYSEC-2026-2524
summary: 'OpenStack Ironic: Pre-Validation Checksum Calculation allows Denial of Service
  (DoS) via Infinite Block Devices'
details: In OpenStack Ironic through 35.x before a3f6d73, during image handling, an
  infinite loop in checksum calculations can occur via the file:///dev/zero URL.
aliases:
- CVE-2026-44919
- GHSA-4g73-w726-53h3
modified: '2026-07-20T12:29:13.339839Z'
published: '2026-07-13T15:19:05.090851Z'
references:
- type: ADVISORY
  url: https://nvd.nist.gov/vuln/detail/CVE-2026-44919
- type: WEB
  url: https://bugs.launchpad.net/ironic/+bug/2150332
- type: PACKAGE
  url: https://opendev.org/openstack/ironic
- type: WEB
  url: https://opendev.org/openstack/ironic/commit/a3f6d735ac3642ab95b49142c7305f072ae748d0
- type: WEB
  url: https://security.openstack.org/ossa/OSSA-2026-013.html
- type: PACKAGE
  url: https://pypi.org/project/ironic
- type: ADVISORY
  url: https://github.com/advisories/GHSA-4g73-w726-53h3
affected:
- package:
    name: ironic
    ecosystem: PyPI
    purl: pkg:pypi/ironic
  ranges:
  - type: ECOSYSTEM
    events:
    - introduced: '0'
    - last_affected: 36.0.0
  versions:
  - '0.0'
  - 10.1.10
  - 10.1.7
  - 10.1.8
  - 10.1.9
  - 11.1.1
  - 11.1.2
  - 11.1.3
  - 11.1.4
  - 12.0.0
  - 12.1.0
  - 12.1.1
  - 12.1.2
  - 12.1.3
  - 12.1.4
  - 12.1.5
  - 12.1.6
  - 12.2.0
  - 13.0.0
  - 13.0.1
  - 13.0.2
  - 13.0.3
  - 13.0.4
  - 13.0.5
  - 13.0.6
  - 13.0.7
  - 14.0.0
  - 15.0.0
  - 15.0.1
  - 15.0.2
  - 15.1.0
  - 15.2.0
  - 16.0.0
  - 16.0.1
  - 16.0.2
  - 16.0.3
  - 16.0.4
  - 16.0.5
  - 16.1.0
  - 16.2.0
  - 17.0.0
  - 17.0.1
  - 17.0.2
  - 17.0.3
  - 17.0.4
  - 17.1.0
  - 18.0.0
  - 18.1.0
  - 18.2.0
  - 18.2.1
  - 18.2.2
  - 18.3.0
  - 19.0.0
  - 20.0.0
  - 20.1.0
  - 20.1.1
  - 20.1.2
  - 20.1.3
  - 20.2.0
  - 21.0.0
  - 21.1.0
  - 21.1.1
  - 21.1.2
  - 21.2.0
  - 21.3.0
  - 21.4.0
  - 21.4.1
  - 21.4.2
  - 21.4.3
  - 21.4.4
  - 22.0.0
  - 22.1.0
  - 23.0.0
  - 23.0.1
  - 23.0.2
  - 23.0.3
  - 23.0.4
  - 23.0.5
  - 23.1.0
  - 24.0.0
  - 24.1.0
  - 24.1.1
  - 24.1.2
  - 24.1.3
  - 24.1.4
  - 24.1.5
  - 25.0.0
  - 26.0.0
  - 26.1.0
  - 26.1.1
  - 26.1.2
  - 26.1.3
  - 26.1.4
  - 26.1.5
  - 26.1.6
  - 27.0.0
  - 28.0.0
  - 29.0.0
  - 29.0.1
  - 29.0.2
  - 29.0.3
  - 29.0.4
  - 29.0.5
  - 30.0.0
  - 31.0.0
  - 32.0.0
  - 32.0.1
  - 33.0.0
  - 34.0.0
  - 35.0.0
  - 35.0.1
  - 36.0.0
  - 9.1.6
  - 9.1.7
  - 29.0.6
severity:
- type: CVSS_V3
  score: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L