Public mode

No access to your tenant or devices. Every item links to its source. What this means

CVE-2026-24708

Nova · Vulnerability

CVSS 3.1 8.2 HIGHCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-24708

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-24708

Published

Nova

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "defaultStatus": "unaffected",
                    "product": "Nova",
                    "vendor": "OpenStack",
                    "versions": [
                        {
                            "lessThan": "30.2.2",
                            "status": "affected",
                            "version": "0",
                            "versionType": "semver"
                        },
                        {
                            "lessThan": "31.2.1",
                            "status": "affected",
                            "version": "31.0.0",
                            "versionType": "semver"
                        },
                        {
                            "lessThan": "32.1.1",
                            "status": "affected",
                            "version": "32.0.0",
                            "versionType": "semver"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON