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Vulnerability Details :

CVE-2026-40214

Summary
Assigner-mitre
Assigner Org ID-8254265b-2729-46b6-b9e3-3dfca2d5bfca
Published At-07 May, 2026 | 00:00
Updated At-08 May, 2026 | 15:47
Rejected At-
Credits

In OpenStack Cyborg before 16.0.1, the Accelerator Request (ARQ) API does not enforce project ownership at any layer. The project_id column in the database is never populated (NULL for every ARQ), database queries have no project filtering, and policy checks are self-referential (the authorize_wsgi decorator compares the caller's project_id with itself rather than the target resource). Any authenticated non-admin user can complete various actions such as deleting ARQs bound to other projects' instances, aka cross-tenant denial of service.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:mitre
Assigner Org ID:8254265b-2729-46b6-b9e3-3dfca2d5bfca
Published At:07 May, 2026 | 00:00
Updated At:08 May, 2026 | 15:47
Rejected At:
▼CVE Numbering Authority (CNA)

In OpenStack Cyborg before 16.0.1, the Accelerator Request (ARQ) API does not enforce project ownership at any layer. The project_id column in the database is never populated (NULL for every ARQ), database queries have no project filtering, and policy checks are self-referential (the authorize_wsgi decorator compares the caller's project_id with itself rather than the target resource). Any authenticated non-admin user can complete various actions such as deleting ARQs bound to other projects' instances, aka cross-tenant denial of service.

Affected Products
Vendor
OpenStackOpenStack
Product
Cyborg
Default Status
unaffected
Versions
Affected
  • From 3.0.0 before 14.0.1 (semver)
  • From 15.0.0 before 15.0.1 (semver)
  • From 16.0.0 before 16.0.1 (semver)
Problem Types
TypeCWE IDDescription
CWECWE-282CWE-282 Improper Ownership Management
Type: CWE
CWE ID: CWE-282
Description: CWE-282 Improper Ownership Management
Metrics
VersionBase scoreBase severityVector
3.16.3MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Version: 3.1
Base score: 6.3
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://bugs.launchpad.net/openstack-cyborg/+bug/2144056
N/A
https://www.openwall.com/lists/oss-security/2026/05/07/6
N/A
https://security.openstack.org/ossa/OSSA-2026-011.html
N/A
Hyperlink: https://bugs.launchpad.net/openstack-cyborg/+bug/2144056
Resource: N/A
Hyperlink: https://www.openwall.com/lists/oss-security/2026/05/07/6
Resource: N/A
Hyperlink: https://security.openstack.org/ossa/OSSA-2026-011.html
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:cve@mitre.org
Published At:07 May, 2026 | 22:16
Updated At:08 May, 2026 | 16:16

In OpenStack Cyborg before 16.0.1, the Accelerator Request (ARQ) API does not enforce project ownership at any layer. The project_id column in the database is never populated (NULL for every ARQ), database queries have no project filtering, and policy checks are self-referential (the authorize_wsgi decorator compares the caller's project_id with itself rather than the target resource). Any authenticated non-admin user can complete various actions such as deleting ARQs bound to other projects' instances, aka cross-tenant denial of service.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.16.3MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Type: Secondary
Version: 3.1
Base score: 6.3
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CPE Matches
Weaknesses
CWE IDTypeSource
CWE-282Secondarycve@mitre.org
CWE ID: CWE-282
Type: Secondary
Source: cve@mitre.org
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://bugs.launchpad.net/openstack-cyborg/+bug/2144056cve@mitre.org
N/A
https://security.openstack.org/ossa/OSSA-2026-011.htmlcve@mitre.org
N/A
https://www.openwall.com/lists/oss-security/2026/05/07/6cve@mitre.org
N/A
Hyperlink: https://bugs.launchpad.net/openstack-cyborg/+bug/2144056
Source: cve@mitre.org
Resource: N/A
Hyperlink: https://security.openstack.org/ossa/OSSA-2026-011.html
Source: cve@mitre.org
Resource: N/A
Hyperlink: https://www.openwall.com/lists/oss-security/2026/05/07/6
Source: cve@mitre.org
Resource: N/A

Change History

0
Information is not available yet

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