Bug 2547693 (CVE-2026-93856) - CVE-2026-93856 cinder: openstack-cinder: Information disclosure via Block Storage API message listing
Summary: CVE-2026-93856 cinder: openstack-cinder: Information disclosure via Block Sto...
Keywords:
Status: NEW
Alias: CVE-2026-93856
Deadline: 2026-10-20
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-07 20:39 UTC by OSIDB Bzimport
Modified: 2026-10-20 14:34 UTC (History)
8 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2026-10-07 20:39:17 UTC 
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.
Note You need to log in before you can comment on or make changes to this bug.