CVE-2026-48681 OpenStack Ironic allows file overwrite via directory traversal during deployment with a crafted ISO image

Medium 5.9 Published Updated

Attackers can overwrite files via directory traversal using a crafted ISO image during deployment in OpenStack Ironic.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2026-48681?

CVE-2026-48681 is a medium-severity path traversal vulnerability in OpenStack Ironic, published on 4 Jun 2026. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

OpenStack Ironic through before 35.0.2 allows file overwrite via directory traversal during deployment with a crafted ISO image.

Weakness: CWE-23

Which versions are affected by CVE-2026-48681?

9 open source packages ship an affected version, including ironic. It affects 1 product.

PackageAffectedFixed in
ironic PyPIFrom 17.0.026.1.7, 29.0.6, 32.0.2, 35.0.2
ironic PyPIFrom 17.0.026.1.7
ironic PyPIFrom 17.0.026.1.7
ironic PyPIFrom 27.0.029.0.6
ironic PyPIFrom 27.0.029.0.6
ironic PyPIFrom 30.0.032.0.2
3 more packages
ironic PyPIFrom 30.0.032.0.2
ironic PyPIFrom 33.0.035.0.2
ironic PyPIFrom 33.0.035.0.2

Products include Openstack Ironic.

How do I fix CVE-2026-48681?

Upgrade ironic to a fixed version for your release line: 26.1.7, 29.0.6, 32.0.2 or 35.0.2.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2026-48681 being exploited?

There is no known exploitation of CVE-2026-48681 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2026-48681, GHSA-9v62-qx4c-44x5, PYSEC-2026-3470, UBUNTU-CVE-2026-48681.

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