CVE-2026-46448: CWE-669 Incorrect Resource Transfer Between Spheres in OpenStack Nova
CVE-2026-46448 is a medium severity vulnerability in OpenStack Nova before version 33.0.2. The server create API fails to strip certain hint data, resulting in instances being created without Placement allocations. This issue affects specific versions including 18.0.0, 32.0.0, and 33.0.0. The vulnerability has a CVSS score of 5.4, indicating a moderate impact primarily on confidentiality and availability. No official patch or remediation guidance has been provided yet.
AI Analysis
Technical Summary
The vulnerability CVE-2026-46448 in OpenStack Nova involves the server create API not properly stripping certain hint data before version 33.0.2. This leads to instances being created without Placement allocations, which can affect resource management within the cloud environment. The issue is categorized under CWE-669, indicating incorrect resource transfer between spheres. Affected versions explicitly include 18.0.0, 32.0.0, and 33.0.0. There is no vendor advisory or patch currently available, and no known exploits in the wild have been reported.
Potential Impact
The impact of this vulnerability is that instances created without Placement allocations may lead to incorrect resource management, potentially causing resource allocation inconsistencies or availability issues. The CVSS score of 5.4 reflects a medium severity with limited confidentiality impact and some availability impact. There is no indication of integrity compromise or privilege escalation from the provided data.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should monitor OpenStack Nova updates and consider avoiding the affected versions (=18.0.0, =32.0.0, =33.0.0) if possible. No vendor-provided temporary fixes or workarounds are currently documented.
CVE-2026-46448: CWE-669 Incorrect Resource Transfer Between Spheres in OpenStack Nova
Description
CVE-2026-46448 is a medium severity vulnerability in OpenStack Nova before version 33.0.2. The server create API fails to strip certain hint data, resulting in instances being created without Placement allocations. This issue affects specific versions including 18.0.0, 32.0.0, and 33.0.0. The vulnerability has a CVSS score of 5.4, indicating a moderate impact primarily on confidentiality and availability. No official patch or remediation guidance has been provided yet.
CVSS v3.1
Score 5.4medium
Affected software
pkg:github/openstack/novaRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2026-46448 in OpenStack Nova involves the server create API not properly stripping certain hint data before version 33.0.2. This leads to instances being created without Placement allocations, which can affect resource management within the cloud environment. The issue is categorized under CWE-669, indicating incorrect resource transfer between spheres. Affected versions explicitly include 18.0.0, 32.0.0, and 33.0.0. There is no vendor advisory or patch currently available, and no known exploits in the wild have been reported.
Potential Impact
The impact of this vulnerability is that instances created without Placement allocations may lead to incorrect resource management, potentially causing resource allocation inconsistencies or availability issues. The CVSS score of 5.4 reflects a medium severity with limited confidentiality impact and some availability impact. There is no indication of integrity compromise or privilege escalation from the provided data.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should monitor OpenStack Nova updates and consider avoiding the affected versions (=18.0.0, =32.0.0, =33.0.0) if possible. No vendor-provided temporary fixes or workarounds are currently documented.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-05-14T00:00:00.000Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a31a4690b89be68881528d9
Added to database: 6/16/2026, 7:30:49 PM
Last enriched: 6/16/2026, 7:45:45 PM
Last updated: 6/16/2026, 8:41:35 PM
Views: 3
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