[USN-8421-1] Ironic vulnerabilities

[noreply+usn-bot at canonical.com]

==========================================================================
Ubuntu Security Notice USN-8421-1
June 11, 2026

ironic vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 26.04 LTS
- Ubuntu 25.10
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS

Summary:

Several security issues were fixed in Ironic.

Software Description:
- ironic: OpenStack service which provides the capability to orchestrate bare metal servers

Details:

Dmitry Tantsur and Tuomo Tanskanen discovered that Ironic did not
properly validate file paths when handling ISO images. A privileged
authenticated remote user could use this issue to perform path
traversal via a crafted ISO image and overwrite arbitrary files on
the Ironic conductor. (CVE-2026-48681)

Dmitry Tantsur and Tuomo Tanskanen discovered that Ironic did not
properly validate kernel command line parameters. A privileged
authenticated remote user could use this issue to inject
scripts during node boot and possibly execute arbitrary code.
(CVE-2026-46447)

Dmitry Tantsur and Tuomo Tanskanen discovered that Ironic
incorrectly restricted access to custom PXE templates. A privileged
authenticated remote user could use this issue to read arbitrary
sensitive files on the Ironic conductor. (CVE-2026-44917)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 26.04 LTS
  ironic-api                      1:35.0.0-0ubuntu2.1
  ironic-common                   1:35.0.0-0ubuntu2.1
  ironic-conductor                1:35.0.0-0ubuntu2.1
  python3-ironic                  1:35.0.0-0ubuntu2.1

Ubuntu 25.10
  ironic-api                      1:32.0.0-0ubuntu1.1
  ironic-common                   1:32.0.0-0ubuntu1.1
  ironic-conductor                1:32.0.0-0ubuntu1.1
  python3-ironic                  1:32.0.0-0ubuntu1.1

Ubuntu 24.04 LTS
  ironic-api                      1:24.1.1-0ubuntu1.3
  ironic-common                   1:24.1.1-0ubuntu1.3
  ironic-conductor                1:24.1.1-0ubuntu1.3
  python3-ironic                  1:24.1.1-0ubuntu1.3

Ubuntu 22.04 LTS
  ironic-api                      1:20.1.0-0ubuntu1.3
  ironic-common                   1:20.1.0-0ubuntu1.3
  ironic-conductor                1:20.1.0-0ubuntu1.3
  python3-ironic                  1:20.1.0-0ubuntu1.3

In general, a standard system update will make all the necessary changes.

References:
  https://ubuntu.com/security/notices/USN-8421-1
  CVE-2026-44917, CVE-2026-46447, CVE-2026-48681

Package Information:
  https://launchpad.net/ubuntu/+source/ironic/1:35.0.0-0ubuntu2.1
  https://launchpad.net/ubuntu/+source/ironic/1:32.0.0-0ubuntu1.1
  https://launchpad.net/ubuntu/+source/ironic/1:24.1.1-0ubuntu1.3
  https://launchpad.net/ubuntu/+source/ironic/1:20.1.0-0ubuntu1.3
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