CVE-2026-49299
Fixed in a distro release EPSS <1%CVSS 5.3
In OpenStack Neutron before 28.0.1, the tagging controller enforces plural policy action names on single-tag write operations while the defined policy rules use singular names. The mismatched names evaluate as allowed under the default policy, permitting a project reader to create and update tags on same-project resources. Deployments running Neutron 26.0.0 or later are affected.
Products: openstack neutron
Fixed upstream
| Ecosystem | Package | Fixed in |
|---|---|---|
| PyPI | neutron | 28.0.1 |
| PyPI | neutron | 27.0.3 |
| PyPI | neutron | 26.0.4 |
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | neutron | no fix |
| Debian 13 | neutron | 2:26.0.0-9+deb13u1 |
| Debian 14 | neutron | 2:28.0.0-4 |
| Ubuntu 16.04 LTS | neutron | no fix |
| Ubuntu 18.04 LTS | neutron | no fix |
| Ubuntu 20.04 LTS | neutron | no fix |
| Ubuntu 22.04 LTS | neutron | no fix |
| Ubuntu 24.04 LTS | neutron | no fix |
| Ubuntu 25.10 | neutron | no fix |
| Ubuntu 26.04 LTS | neutron | no fix |
| Ubuntu 26.10 | neutron | no fix |