Skip to content
CVE PROGRAM SOURCE RECORD8.2 High

CVE-2026-24708

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

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
mitre

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

OpenStack Nova

Default version status: unaffected

  • 0 to < 30.2.2affected
  • 31.0.0 to < 31.2.1affected
  • 32.0.0 to < 32.1.1affected

References