CVE-2023-2088Network attack vector

Cross-tenant volume disclosure via stale SCSI attachment

Published May 12, 2023 · Updated Nov 4, 2025

Information disclosure in OpenStack Cinder and Nova allows remote authenticated users to access another tenant's iSCSI or FC volume. Cinder permits deletion of an instance volume attachment without notifying Nova, leaving host, port, and LUN plumbing that reconnects when identifiers are reused. The intentional path requires a regular cloud account and an iSCSI or FC deployment; exposure is limited to the later volume on the same host.

CVSS severity6.5
Medium
EPSS probability1.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in OpenStack Cinder and Nova allows remote authenticated users to access another tenant's iSCSI or FC volume. Cinder permits deletion of an instance volume attachment without notifying Nova, leaving host, port, and LUN plumbing that reconnects when identifiers are reused. The intentional path requires a regular cloud account and an iSCSI or FC deployment; exposure is limited to the later volume on the same host.

The record

CVE
CVE-2023-2088
Published
May 12, 2023
Updated
Nov 4, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-440, T1530
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 12, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 4, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-440Expected Behavior Violation
T1530Data from Cloud Storage

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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