CVE-2026-55707

In OpenStack Neutron before 28.0.2, the subnetpool onboarding API does not verify ownership of the target subnets. An authenticated user can onboard subnets from another project's shared network into their own subnetpool, mutating the victim's subnet state and altering L3 routing and address scop...

CVE-2026-55707: Incorrect Authorization

In OpenStack Neutron before 28.0.2, the subnetpool onboarding API does not verify ownership of the target subnets. An authenticated user can onboard subnets from another project's shared network into their own subnetpool, mutating the victim's subnet state and altering L3 routing and address scop...

PT-2026-67950

Name of the Vulnerable Software and Affected Versions OpenStack Neutron versions prior to 28.0.2 Description The subnetpool onboarding API fails to verify the ownership of target subnets. This allows an authenticated user to onboard subnets belonging to another project's shared network into their...