OpenStack Manila allows cross-project share changes (CVE-2026-71195)
OSSA-2026-046, dated October 20, lists affected Manila lines including releases before 22.0.2 and version 23.0.0; the description is cut off.
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CVE-2026-71195
Missing ownership checks on public shares in OpenStack Manila before 23.0.1
- CVSS 3.1
- 9.9 critical
- EPSS
- —
- Published
- ·
- Modified
AI analysisSummaries by Vani AI
In OpenStack Manila before 23.0.1, several API operations on public shares do not verify that the caller owns the share. An authenticated project member can target any public share, whose UUID is visible, after the API authorizes only the caller's own project. The attacker can grant, revoke, or escalate data-plane access, exfiltrate data through a backup, soft-delete or restore the share, alter export-location metadata, and disclose access-rule details such as IPs, usernames, and CephFS keys.
What to do: Upgrade OpenStack Manila to 23.0.1 or later.
| Product | Affected | Fixed in |
|---|---|---|
| OpenStack Manila | before 23.0.1 | 23.0.1 |
Estimated exposure
No basis for an estimate.
Order-of-magnitude estimate by the model from install counts, market share and public scan data it knows; verify before quoting.
Description · NVD
In OpenStack Manila before 23.0.1, multiple Manila API operations on public shares do not verify that the caller owns the share. The API controllers authorize operations against the caller's own project context, then load a foreign public share without re-authorizing against the share's actual owner. This affects the following operations: allow_access: grant data-plane read/write access to another tenant's share; deny_access: revoke the owner's existing access rules; update_access: escalate access level (e.g., ro to rw); create_share_backup: exfiltrate share data via a backup created under the attacker's project; soft_delete: move a foreign share to the recycle bin; restore: interfere with the owner's deletion workflow; export location metadata: create, update, and delete metadata on foreign export locations; access rule listing: disclose IPs, usernames, and CephFS keys. Any authenticated project member can exploit these operations on any public share. The share UUID is visible since the share is public.
- Weakness
- CWE-863
- Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H