What is CVE-2026-24708?

CVE-2026-24708 is a high-severity vulnerability in Openstack Nova, classified under Incorrect Resource Transfer Between Spheres. CVSS score: 8.2/10. Published 2026-02-18.

How severe is CVE-2026-24708?

High severity. CVSS v3 base score is 8.2 out of 10.

Vulnerability in Openstack Nova

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 a resize, a user may convince Nova's Flat image backend to…

EPSS: 0.000 (5.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:H.

Affected products

Openstack Nova — versions 0, 31.0.0, 32.0.0

Weakness classification (CWE)

CWE-669 — Incorrect Resource Transfer Between Spheres

References

bugs.launchpad.net/nova/+bug/2137507
www.openwall.com/lists/oss-security/2026/02/17/7

Frequently asked questions

What is CVE-2026-24708?: CVE-2026-24708 is a high-severity vulnerability in Openstack Nova, classified under Incorrect Resource Transfer Between Spheres. CVSS score: 8.2/10. Published 2026-02-18.
How severe is CVE-2026-24708?: High severity. CVSS v3 base score is 8.2 out of 10.