CVE-2026-24708 – OpenStack Nova Data Destruction Vulnerability

CVE ID : CVE-2026-24708

Published : Feb. 18, 2026, 6:24 p.m. | 35 minutes ago

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.

Severity: 8.2 | HIGH

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