CVE-2026-44919: In OpenStack Ironic through 35.x before a3f6d73, during image handling, an infinite loop in checksum calculati

Routine

MEDIUM 4.3UPGRADE

CVE-2026-44919 is a medium-severity flaw (CVSS 4.3) affecting ironic. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.5% (top 60%)
CISA exploited list	No
Weakness	CWE-696
Published	2026-05-14
Last modified	2026-10-26

Publisher (CNA): MITRE · Vendor: openstack

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-14 02:17 UTCPublished CVE record published
2026-10-26 14:10 UTCUpdated Record last modified

openstack ironic UPGRADE

Affected: >= 23.0.4 and < 29.0.6 · >= 30.0.0 and < 32.0.2 · >= 33.0.0 and < 35.0.2

Fixed in: 29.0.6, 32.0.2, 35.0.2

Safe to downgrade to: a release before 23.0.4

1. Check installed version

apt-cache policy ironic || rpm -q ironic || ironic --version

2. UPGRADE to 29.0.6 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade ironic

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade ironic

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 23.0.4 (Debian / Ubuntu)

apt-cache madison ironic sudo apt install ironic=<VERSION_BEFORE_23.0.4> sudo apt-mark hold ironic

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list ironic sudo dnf downgrade ironic-<VERSION_BEFORE_23.0.4> sudo dnf versionlock add ironic

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-44919?

ironic: upgrade to 29.0.6, 32.0.2, 35.0.2. Exact commands for each OS are on this page.

Is CVE-2026-44919 being exploited?

CVE-2026-44919 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-44919 affect?

CVE-2026-44919 affects ironic. Severity is medium (CVSS 4.3). 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.

How urgent is CVE-2026-44919?

Priority 30/100. Public exploit reference

Software pages

OpenStack vulnerabilities

Related CVEs

CVE-2026-44916 LOW 3.0 UPGRADE In OpenStack Ironic before 35.0.2 (in a certain non-default configuration), instance_info['ks_template'] is re

References

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