Vulnerability PYSEC-2026-882
Low Risk
LOW RISK
CVSS Score: 3.3
Score Range: < 4.0
Low severity vulnerabilities (CVSS < 4.0). Hygiene issues that can accumulate but pose lower immediate risk.
4 months ago
July 06, 2026 at 08:03 AM UTC
OpenStack Nova Changing vnic_type breaks compute service restart
15.1.5 - 23.2.1 and 24.0.0 - 24.1.1 and 25.0.0 - 25.0.1
15.1.5 - 23.2.1 and 24.0.0 - 24.1.1 and 25.0.0 - 25.0.1
Summary
OpenStack Nova Changing vnic_type breaks compute service restart
Details
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.
Related Vulnerabilities
Other vulnerabilities affecting the same packages
Medium Risk
4 months ago
OpenStack Nova: Nova scheduler hint injection bypasses Placement resource claims and scheduling constraints
18.0.2 - 31.3.0 and 32.0.0 - 32.2.0 and 33.0.0 - 33.0.1 PYSEC-2026-2686
18.0.2 - 31.3.0 and 32.0.0 - 32.2.0 and 33.0.0 - 33.0.1 PYSEC-2026-2686
High Risk
4 months ago
OpenStack Nova calls qemu-img without format restrictions for resize
15.1.5 - 30.2.1 and 31.0.0.0rc1 - 31.2.0 and 32.0.0.0rc1 - 32.1.0 PYSEC-2026-2685
15.1.5 - 30.2.1 and 31.0.0.0rc1 - 31.2.0 and 32.0.0.0rc1 - 32.1.0 PYSEC-2026-2685
Medium Risk
4 months ago
OpenStack Nova vulnerable to unauthorized access to potentially sensitive data
15.1.5 - 27.4.0 and 28.0.0 - 28.2.0 and 29.0.0 - 29.1.0 PYSEC-2026-1709
15.1.5 - 27.4.0 and 28.0.0 - 28.2.0 and 29.0.0 - 29.1.0 PYSEC-2026-1709
Medium Risk
4 months ago
OpenStack Cinder, Glance, and Nova vulnerable to arbitrary file access
15.1.5 - 29.0.2 PYSEC-2026-1708
15.1.5 - 29.0.2 PYSEC-2026-1708
Medium Risk
4 months ago
OpenStack Cinder, glance, and Nova vulnerable to Path Traversal
15.1.5 - 24.1.1 and 25.0.0 - 25.0.1 PYSEC-2026-868
15.1.5 - 24.1.1 and 25.0.0 - 25.0.1 PYSEC-2026-868
Impacted packages
Timeline
Published
4 months ago
July 06, 2026 at 08:03 AM UTC
Fixed (23.2.2)
4 years ago
November 04, 2022 at 10:07 AM UTC
Last Modified
4 months ago
July 07, 2026 at 11:45 AM UTC