PYSEC-2026-2524

OpenStack Ironic: Pre-Validation Checksum Calculation allows Denial of Service (DoS) via Infinite Block Devices

At a glance

Published: 2026-07-13 15:19 UTC
Updated: 2026-07-20 12:45 UTC
CVE: CVE-2026-44919
Aliases: GHSA-4g73-w726-53h3
CVSS_V3: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Description

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.

Affected packages

Package	Versions
PyPI · ironic	introduced 0, last affected 36.0.0

References

https://nvd.nist.gov/vuln/detail/CVE-2026-44919 ADVISORY
https://bugs.launchpad.net/ironic/+bug/2150332 WEB
https://opendev.org/openstack/ironic PACKAGE
https://opendev.org/openstack/ironic/commit/a3f6d735ac3642ab95b49142c7305f072ae748d0 WEB
https://security.openstack.org/ossa/OSSA-2026-013.html WEB
https://pypi.org/project/ironic PACKAGE
https://github.com/advisories/GHSA-4g73-w726-53h3 ADVISORY

Sources

Source	Licence
OSV.dev	CC-BY 4.0 — PyPA Advisory Database