OSSA-2026-008: OpenStack Ironic: Command Injection in Ironic IPMI Console Implementations (CVE-2026-42510) - errata 1

[Goutham Pacha Ravi <gouthampravi () gmail com>]

=======================================================================
OSSA-2026-008: Command Injection in Ironic IPMI Console Implementations
=======================================================================

:Date: April 27, 2026
:CVE: CVE-2026-42510


Affects
~~~~~~~
- Ironic: >=4.3.0 <26.1.6, >=27.0.0 <29.0.5, >=30.0.0 <32.0.1, >=33.0.0 
<35.0.1


Description
~~~~~~~~~~~
Dmitry Tantsur and Tuomo Tanskanen from the Metal3.io Security Team 
reported a vulnerability in Ironic's IPMI console backends. A project 
manager for the project marked as a ``node.owner`` can inject arbitrary 
commands which a conductor executes on console activation.
No console backends are enabled by default in Ironic. Only installations 
which have set ``[conductor]/enabled_console_interfaces`` to enable 
either ``ipmitool-shellinabox`` or ``ipmitool-socat`` are vulnerable.



Errata
~~~~~~
When the original advisory was published a CVE number was not assigned. 
CVE-2026-42510 was assigned on 2026-04-29.


Patches
~~~~~~~
- https://review.opendev.org/c/openstack/ironic/+/986418 
(2023.1/antelope (unmaintained))
- https://review.opendev.org/c/openstack/ironic/+/986417 (2024.1/caracal 
(unmaintained))
- https://review.opendev.org/c/openstack/ironic/+/986363 (2024.2/dalmatian)
- https://review.opendev.org/c/openstack/ironic/+/986362 (2025.1/epoxy)
- https://review.opendev.org/c/openstack/ironic/+/986361 (2025.2/flamingo)
- https://review.opendev.org/c/openstack/ironic/+/986235 (2026.1/gazpacho)


Credits
~~~~~~~
- Dmitry Tantsur from Metal3.io Security Team
- Tuomo Tanskanen from Metal3.io Security Team


References
~~~~~~~~~~
- https://launchpad.net/bugs/2148331
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-42510


Notes
~~~~~
- A CVE request was filed with MITRE on 2026-04-27.
- Patches for unmaintained branches are provided as a courtesy.
- The ``ipmitool-shellinabox`` console interface is already scheduled
  for removal from Ironic for lack of security support for shellinabox.
  Security sensitive operators are strongly encouraged to stop use of
  this console interface immediately.


OSSA History
~~~~~~~~~~~~
- 2026-04-29 - Errata 1
- 2026-04-27 - Original Version


--
Goutham Pacha Ravi
OpenStack Vulnerability Management Team
https://security.openstack.org/vmt.html

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