CVE-2026-24708
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开源的一款核心计算服务组件。 OpenStack Nova 30.2.2之前版本、31.2.1之前版本和32.1.1之前版本存在安全漏洞，该漏洞源于Flat镜像后端处理恶意QCOW头文件时未施加格式限制，可能导致不安全的镜像调整大小操作，从而破坏主机系统上的数据。
Possible ATT&CK Techniques 2 AI
T1068 · Exploitation for Privilege Escalation T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-24708
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An issue was discovered in OpenStack Nova before 30.2.2, 31 before 31.2.1, and 32 before 32.1.1. By writing a malicious QCOW header to a root or ephemeral disk and then triggering a resize, a user may convince Nova's Flat image backend to call qemu-img without a format restriction, resulting in an unsafe image resize operation that could destroy data on the host system. Only compute nodes using the Flat image backend (usually configured with use_cow_images=False) are affected.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:H
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 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenStack Nova是OpenStack开源的一款核心计算服务组件。 OpenStack Nova 30.2.2之前版本、31.2.1之前版本和32.1.1之前版本存在安全漏洞，该漏洞源于Flat镜像后端处理恶意QCOW头文件时未施加格式限制，可能导致不安全的镜像调整大小操作，从而破坏主机系统上的数据。
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
II. Public POCs for CVE-2026-24708
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