ESB-2026.6567

=========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2026.6567 USN-8421-1: Ironic vulnerabilities 12 June 2026 =========================================================================== AUSCERT Security Bulletin Summary --------------------------------- Product: Ironic Publisher: Ubuntu Operating System: Ubuntu Resolution: Patch/Upgrade CVE Names: CVE-2026-44917 CVE-2026-46447 CVE-2026-48681 Original Bulletin: https://ubuntu.com/security/notices/USN-8421-1 Comment: CVSS (Max): 8.1 CVE-2026-48681 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N) CVSS Source: MITRE, [NIST] Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N EPSS (Max): 0.1% (35th) CVE-2026-48681 2026-06-11 - --------------------------BEGIN INCLUDED TEXT-------------------- USN-8421-1: Ironic vulnerabilities Publication date 11 June 2026 Overview Several security issues were fixed in Ironic. Releases 26.04 LTS 25.10 24.04 LTS 22.04 LTS --------------------------------------------------------------------------------- Open side navigation Packages o 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 Release Package Version ironic-api - 1:35.0.0-0ubuntu2.1 26.04 LTS resolute ironic-common - 1:35.0.0-0ubuntu2.1 ironic-conductor - 1:35.0.0-0ubuntu2.1 python3-ironic - 1:35.0.0-0ubuntu2.1 ironic-api - 1:32.0.0-0ubuntu1.1 25.10 questing ironic-common - 1:32.0.0-0ubuntu1.1 ironic-conductor - 1:32.0.0-0ubuntu1.1 python3-ironic - 1:32.0.0-0ubuntu1.1 ironic-api - 1:24.1.1-0ubuntu1.3 24.04 LTS noble ironic-common - 1:24.1.1-0ubuntu1.3 ironic-conductor - 1:24.1.1-0ubuntu1.3 python3-ironic - 1:24.1.1-0ubuntu1.3 ironic-api - 1:20.1.0-0ubuntu1.3 22.04 LTS jammy ironic-common - 1:20.1.0-0ubuntu1.3 ironic-conductor - 1:20.1.0-0ubuntu1.3 python3-ironic - 1:20.1.0-0ubuntu1.3 --------------------------------------------------------------------------------- References o CVE-2026-48681 o CVE-2026-46447 o CVE-2026-44917 - --------------------------END INCLUDED TEXT---------------------- You have received this e-mail bulletin as a result of your organisation's registration with AUSCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AUSCERT's members. As AUSCERT did not write the document quoted above, AUSCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AUSCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://portal.auscert.org.au/bulletins/ =========================================================================== AUSCERT The University of Queensland, Brisbane QLD 4072 Australia e: auscert@auscert.org.au t: +61 (0)7 3365 4417 Allies in Cyber Security ===========================================================================