External Control of File Name or Path Affecting nova package, versions [,30.3.0)[31.0.0.0rc1,31.3.0)[32.0.0.0rc1,32.2.0)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-PYTHON-NOVA-15325681
- published22 Feb 2026
- disclosed17 Feb 2026
- creditDan Smith
Introduced: 17 Feb 2026
CVE-2026-24708 (opens in a new tab)How to fix?
Upgrade nova to version 30.3.0, 31.3.0, 32.2.0 or higher.
Overview
nova is an OpenStack Nova provides a cloud computing fabric controller, supporting a wide variety of compute technologies, including: libvirt (KVM, Xen, LXC and more), Hyper-V, VMware, XenServer, OpenStack Ironic and PowerVM.
Affected versions of this package are vulnerable to External Control of File Name or Path via unconstrained handling of disk image formats when invoking qemu-img. An attacker can overwrite arbitrary files on the compute host with the privileges of the Nova service by crafting a malicious QCOW2 header on an ephemeral or root disk and triggering destructive behavior during instance operations such as resize.