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CVE-2026-24708

8.2 · HIGH

An issue was discovered in OpenStack Nova before 30.2.2, 31 before 31.2.1, and 32 before 32.1.1.

Published Feb 18, 2026CWE-669EPSS 0.42%

Overview

CVE-2026-24708 is a high-severity vulnerability. It was published on February 18, 2026 and has a CVSS 3.1 base score of 8.2 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.2, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refbugs.launchpad.net/nova/+bug/2137507Refwww.openwall.com/lists/oss-security/2026/02/17/7Reflists.debian.org/debian-lts-announce/2026/02/msg00025.htmlRefaccess.redhat.com/errata/RHSA-2026:54757Refaccess.redhat.com/errata/RHSA-2026:7884Refaccess.redhat.com/security/cve/CVE-2026-24708Refbugzilla.redhat.com/show_bug.cgi?id=2430312Refsecurity.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-24708.json

How CyberStrike helps

Frequently asked questions

What is CVE-2026-24708?

CVE-2026-24708 is a high-severity vulnerability. It was published on February 18, 2026 and has a CVSS 3.1 base score of 8.2 (HIGH).

How severe is CVE-2026-24708?

This vulnerability has a CVSS 3.1 base score of 8.2, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-24708?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-24708?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-24708 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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