In OpenStack Ironic before 37.0.1, when applying a PATCH to update fields in volume properties the user is authorized for, Ironic can return… (CVE-2026-54421)
Description
OpenStack Ironic versions before 37.0.1 have a vulnerability where applying a PATCH request to update authorized volume property fields can cause the system to return unredacted sensitive information, such as iSCSI credentials. This issue affects multiple Ubuntu package versions of Ironic. The vulnerability does not affect POST requests. The CVSS score is 6.8, indicating a medium severity.
CVSS v3.1
Score 6.8medium
Affected software
pkg:deb/ubuntu/ironic?arch=source&distro=xenialpkg:deb/ubuntu/ironic?arch=source&distro=bionicpkg:deb/ubuntu/ironic?arch=source&distro=focalpkg:deb/ubuntu/ironic?arch=source&distro=jammypkg:deb/ubuntu/ironic?arch=source&distro=noblepkg:deb/ubuntu/ironic?arch=source&distro=questingpkg:deb/ubuntu/ironic?arch=source&distro=stonkingpkg:deb/ubuntu/ironic?arch=source&distro=resoluteRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-54421 is a vulnerability in OpenStack Ironic prior to version 37.0.1. When a PATCH request is used to update fields in volume properties that the user is authorized to modify, Ironic may return unredacted sensitive information, including iSCSI credentials. This leakage of sensitive data is a security concern. The vulnerability specifically affects the PATCH method outcome; POST requests are not impacted. Multiple Ubuntu package versions of Ironic are affected as listed. The CVSS v3.1 score is 6.8 with vector AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N, indicating network attack vector, low attack complexity, high privileges required, no user interaction, scope changed, high confidentiality impact, no integrity or availability impact.
Potential Impact
The vulnerability can lead to unauthorized disclosure of sensitive information such as iSCSI credentials when a PATCH request is made to update volume properties. This could compromise confidentiality but does not affect integrity or availability. The issue requires high privileges to exploit and occurs over the network. There are no known exploits in the wild at this time.
Mitigation Recommendations
A fix is available in OpenStack Ironic version 37.0.1 and later. Users should upgrade to version 37.0.1 or newer to remediate this vulnerability. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- UBUNTU-CVE-2026-54421
- Osv Schema Version
- 1.7.0
- Ecosystems
- ["Ubuntu:16.04:LTS","Ubuntu:18.04:LTS","Ubuntu:20.04:LTS","Ubuntu:22.04:LTS","Ubuntu:24.04:LTS","Ubuntu:25.10","Ubuntu:26.10","Ubuntu:26.04:LTS"]
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ad3f5fb2cdf04f656663994
Added to database: 10/17/2026, 22:26:03 UTC
Last enriched: 10/18/2026, 00:48:52 UTC
Last updated: 10/18/2026, 00:48:52 UTC
Views: 3
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