OpenStack Nova Filter Scheduler Bypass
Published Nov 14, 2017 · Updated Oct 23, 2026 · Also known as PYSEC-2026-694, GHSA-w2wf-cgwh-vpqg
Original summary
Normalized public record · Updated Oct 23, 2026
OpenStack Nova Filter Scheduler Bypass
Publisher and source text is retained separately from QFinch interpretation.
QFinch assessment
In OpenStack Nova through 14.0.9, 15.x through 15.0.7, and 16.x through 16.0.2, by rebuilding an instance, an authenticated user may be able to circumvent the Filter Scheduler bypassing imposed filters (for example, the ImagePropertiesFilter or the IsolatedHostsFilter). All setups using Nova Filter Scheduler are affected. Because of the regression described in Launchpad Bug #1732947, the preferred fix is a 14.x version after 14.0.10, a 15.x version after 15.0.8, or a 16.x version after 16.0.3.
Evidence: public source recordsAffected products
| Affected package, product or range | Fix status |
|---|---|
| Consult the referenced vendor advisory for affected versions. | Consult source advisory |
Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.
Remediation
Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.
- Confirm the affected product and reachable code path exist in your environment.
- Apply the vendor-supported patch or mitigation from the primary advisory.
- Rescan the exact deployed revision and retain verification evidence.
Evidence coverage
- SSVC priority
- LOW
- Confidence
- Not available
- Aliases
- PYSEC-2026-694, GHSA-w2wf-cgwh-vpqg
Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.
Sources and record history
- 101950 ↗
- RHSA-2018:0369 ↗
- RHSA-2018:0241 ↗
- DSA-4056 ↗
- launchpad.net ↗
- security.openstack.org ↗
- RHSA-2018:0314 ↗
Record history
Published Nov 14, 2017 · Last refreshed Oct 23, 2026