CVSS 3.0
8.6 highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:HCVE-2017-17051
An issue was discovered in the default FilterScheduler in OpenStack Nova 16.0.3. By repeatedly rebuilding an instance with new images, an authenticated user may consume untracked resources on a hypervisor host leading to a denial of service, aka doubled resource allocations. This regression was introduced with the fix for OSSA-2017-005 (CVE-2017-16239); however, only Nova stable/pike or later deployments with that fix applied and relying on the default FilterScheduler are affected.
Severity
- EPSS
- 2.0% chance of exploitation in the next 30 days; higher than 80% of CVEs (scores of 2026-10-31)
- CWE
- CWE-400
- Published
- Modified
- Record from
- the NVD, synced
Affected
- openstack:nova
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-vq76-rxx3-4r4r | PyPI | nova | <16.0.4 | 16.0.4 |
| PYSEC-2026-692 | PyPI | nova | <16.0.4 | 16.0.4 |