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Message-ID: <f8e1b8e1-874a-4bc2-b0b2-5ac43cd3758a@jvf.cc>
Date: Wed, 3 Jun 2026 09:29:13 -0700
From: Jay Faulkner <jay@....cc>
To: oss-security@...ts.openwall.com
Subject: [OSSA-2026-019] Ironic: File Extraction from conductor via
pxe_template (CVE-2026-44917)
=====================================================================
OSSA-2026-019: File Extraction from Ironic conductor via pxe_template
=====================================================================
:Date: June 03, 2026
:CVE: CVE-2026-44917
Affects
~~~~~~~
- Ironic: >=17.0.0 <26.1.7, >=27.0.0 <29.0.6, >=30.0.0 <32.0.2, >=33.0.0
<35.0.2
Description
~~~~~~~~~~~
Dmitry Tantsur (Red Hat) and Tuomo Tanskanen (Ericsson Software
Technology) from the Metal3.io Security Team reported a vulnerability in
Ironic's boot interfaces. A project owner or manager with access to
modify ``node.driver_info[pxe_template]`` can set it to
``/etc/ironic/ironic.conf`` or any other sensitive file readable by the
conductor process. Ironic will then place this "template file" into a
TFTP or HTTP server for netbooting, where it can be fetched by anything
with network access to the conductor.
Ironic intends on completely removing this feature in a future release.
Patches
~~~~~~~
- https://review.opendev.org/c/openstack/ironic/+/991389
(2023.1/antelope (unmaintained))
- https://review.opendev.org/c/openstack/ironic/+/991385 (2024.1/caracal
(unmaintained))
- https://review.opendev.org/c/openstack/ironic/+/991382 (2025.1/epoxy)
- https://review.opendev.org/c/openstack/ironic/+/991379 (2025.2/flamingo)
- https://review.opendev.org/c/openstack/ironic/+/991376 (2026.1/gazpacho)
- https://review.opendev.org/c/openstack/ironic/+/991367
(2026.2/hibiscus (development))
- https://review.opendev.org/c/openstack/ironic/+/991373 (Bugfix/33.0)
- https://review.opendev.org/c/openstack/ironic/+/991370 (Bugfix/34.0)
Credits
~~~~~~~
- Dmitry Tantsur from Red Hat
- Tuomo Tanskanen from Ericsson Software Technology
References
~~~~~~~~~~
- https://bugs.launchpad.net/ironic/+bug/2148319
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-44917
Notes
~~~~~
- Releases 2024.1 (caracal) and 2023.1 (antelope) are unmaintained.
Patches are provided as a courtesy. Releases 2023.2 (bobcat) and
2024.2 (dalmation) are end of life and have not had patches provided.
See https://releases.openstack.org for more information on supported
releases.
- Ironic bugfix branch patches will be available in git for interested
operators. We will not perform an additional release from these
branches.
Download attachment "OpenPGP_0x6B75D939B424C6D4.asc" of type "application/pgp-keys" (6373 bytes)
Download attachment "OpenPGP_signature.asc" of type "application/pgp-signature" (496 bytes)
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