CVEvulnerability

CVE-2026-24708

8.2 HIGH Published 2026-02-18 Modified 2026-09-11 Official page ↗
Status
Deferred
Published
2026-02-18
Last modified
2026-09-11
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.2 HIGH — CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:H
CVSS 3.1 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)
7.1 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Weaknesses
CWE-669, CWE-73

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.

Related

Weakness · CWE (2)

  • CWE-669 Incorrect Resource Transfer Between Spheres weakness
  • CWE-73 External Control of File Name or Path weakness

References