CVE-2026-93856
mediumIn OpenStack Cinder through 29.0.0, cross-project information disclosure can occur in the Messages API.
In OpenStack Cinder through 29.0.0, cross-project information disclosure can occur in the Messages API. A non-admin user with the project-scoped 'member' or 'reader' role making the Block Storage API v3.3 "List messages" call finds the non-expired user messages for other projects included in the response, resulting in the leakage of UUIDs of resources owned by other projects, in addition to the user message about the other projects' resources (which, by design, are sanitized generic messages). All Cinder deployments are affected.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://bugs.launchpad.net/cinder/+bug/2160671 cve@mitre.org
- https://security.openstack.org/ossa/OSSA-2026-045.html cve@mitre.org
- https://www.openwall.com/lists/oss-security/2026/10/20/17 cve@mitre.org
- http://www.openwall.com/lists/oss-security/2026/10/20/17 af854a3a-2127-422b-91ae-364da2661108
- https://bugs.launchpad.net/cinder/+bug/2160671 134c704f-9b21-4f2e-91b3-4a467353bcc0