CVE-2026-71195 OpenStack CVE debrief

Who should care

OpenStack Manila administrators and users with public shares should assess their exposure and take necessary actions to prevent unauthorized access. This includes reviewing and updating OpenStack Manila to version 23.0.1 or later, restricting access to public shares to only authorized users, and monitoring API operations for suspicious activity.

Why it matters

CVE-2026-71195 is a critical vulnerability in OpenStack Manila that allows authenticated project members to exploit multiple API operations on public shares without verifying ownership. This could lead to unauthorized access, data exfiltration, and interference with the owner's deletion workflow. OpenStack Manila administrators and users with public shares should assess their exposure and take necessary actions to prevent unauthorized access.

• Potential unauthorized access to public shares
• Possible data exfiltration via backups
• Interference with owner's deletion workflow
• Disclosure of sensitive information such as IPs, usernames, and CephFS keys

Technical summary

The vulnerability affects OpenStack Manila before version 23.0.1. Multiple Manila API operations on public shares do not verify that the caller owns the share, allowing for unauthorized actions such as granting data-plane read/write access, revoking access rules, escalating access levels, exfiltrating share data, moving a foreign share to the recycle bin, interfering with the owner's deletion workflow, creating, updating, and deleting metadata on foreign export locations, and disclosing IPs, usernames, and CephFS keys.

Defensive priority

High

Recommended defensive actions

• Review and update OpenStack Manila to version 23.0.1 or later
• Restrict access to public shares to only authorized users
• Monitor API operations for suspicious activity
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.

Evidence notes

The vulnerability affects OpenStack Manila before version 23.0.1. Multiple Manila API operations on public shares do not verify that the caller owns the share, allowing for unauthorized actions such as granting data-plane read/write access, revoking access rules, escalating access levels, exfiltrating share data, moving a foreign share to the recycle bin, interfering with the owner's deletion workflow, creating, updating, and deleting metadata on foreign export locations, and disclosing IPs, usernames, and CephFS keys. The share UUID

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.