MEDIUMCVSS v3.1 4.3Vulnerability
CVE-2026-93856
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.
Properties
- Severity
- MEDIUM
- Nvd fetched at
- 2026-10-23T02:14:06.697318+00:00
- Epss score
- 0.00314
- Cvss severity
- MEDIUM
- Cvss score
- 4.3
- Retrieved at
- 2026-10-23T02:20:30+00:00
- Last source
- NVD
- Score
- 4.3
- Cvss version
- 3.1
- Cve id
- CVE-2026-93856
- Cvss vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- First seen by Signal
- 2026-10-21T22:34:38+00:00
- Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- Published at
- 2026-10-21T06:16:51.017
- Last modified
- 2026-10-22T17:16:02.510
- Epss percentile
- 0.23065
Related Entities (1)
HAS_WEAKNESS (1)
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