Advisory details:
pypa / nova/PYSEC-2026-882
| Advisory ID | pypa/nova/PYSEC-2026-882 |
| Aliases |
CVE-2022-37394
GHSA-v725-c588-h936 PYSEC-2026-882 |
| Summary | OpenStack Nova Changing vnic_type breaks compute service restart An issue was discovered in OpenStack Nova before 23.2.2, 24.x before 24.1.2, and 25.x before 25.0.2. By creating a neutron port with the direct vnic_type, creating an instance bound to that port, and then changing the vnic_type of the bound port to macvtap, an authenticated user may cause the compute service to fail to restart, resulting in a possible denial of service. Only Nova deployments configured with SR-IOV are affected. |
| Status | Published |
| Exploitability | 0.5 |
| Weighted Severity | 3.0 |
| Risk | 1.5 |
| Affected and Fixed Packages | Package Details |
| Introduced and Fixed Package Commit Patches | Package Commit Patches Details |
| There are no known CWE. |
| System | Score | Found at |
|---|---|---|
| cvssv3.1 | 3.3 | https://github.com/pypa/advisory-database/blob/main/vulns/nova/PYSEC-2026-882.yaml |
No exploits are available.
No EPSS data available for this advisory.
| Patch URL | |
|---|---|
| There are no known patches. | |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
There are no SSVC decisions available.