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CVE-2026-46448

Quick assessment

Affected
OpenStack Nova
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenStack nova是OpenStack基金会开源的一个云计算计算服务组件。 OpenStack Nova存在权限许可和访问控制问题漏洞，该漏洞源于服务器创建API在创建实例时未剥离某些提示数据，导致实例没有Placement分配。以下版本受到影响：18.0.0版本至31.3.1之前版本、32.0.0版本至32.2.1之前版本和33.0.0版本至33.0.2之前版本。

CVSS 5.4 · Medium EPSS 0.27% · P20

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 3

VendorProduct Version RangeStatus
OpenStack Nova 18.0.0< 31.3.1 affected
32.0.0< 32.2.1 affected
33.0.0< 33.0.2 affected
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I. Basic Information for CVE-2026-46448

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In OpenStack Nova before 33.0.2, the server create API does not strip certain hint data. The resulting instance has no Placement allocation.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
在范围间的资源转移不正确
Source: CVE Program / CVE List V5
Vulnerability Title
OpenStack Nova 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenStack nova是OpenStack基金会开源的一个云计算计算服务组件。 OpenStack Nova存在权限许可和访问控制问题漏洞，该漏洞源于服务器创建API在创建实例时未剥离某些提示数据，导致实例没有Placement分配。以下版本受到影响：18.0.0版本至31.3.1之前版本、32.0.0版本至32.2.1之前版本和33.0.0版本至33.0.2之前版本。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
OpenStack Nova 18.0.0 ~ 31.3.1 -

II. Public POCs for CVE-2026-46448

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III. Intelligence Information for CVE-2026-46448

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Vendor Advisories for CVE-2026-46448 (1)

Mailing List Discussions for CVE-2026-46448 (1)

IV. Related Vulnerabilities

Same product: Nova
Same vendor: OpenStack
Same weakness: CWE-669

V. Comments for CVE-2026-46448

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