CVE-2026-24708_CVE-2026-24708

8.2 / 10

HIGH

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:H

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.

Basic Information

ID CVE-2026-24708

Source mitre

Published Feb 18, 2026 at 00:00

Modified Feb 18, 2026 at 17:03

Affected Product

Vendor OpenStack

Product Nova

Affected Versions OpenStack Nova 0
OpenStack Nova 31.0.0
OpenStack Nova 32.0.0

CWE Classification

CWE-669

References

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    "published": "2026-02-18T00:00:00.000Z",
    "modified": "2026-02-18T17:03:53.469Z",
    "type": "cve",
    "title": "CVE-2026-24708",
    "source": "mitre",
    "references": "https://bugs.launchpad.net/nova/+bug/2137507\nhttps://www.openwall.com/lists/oss-security/2026/02/17/7",
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