CVSS 4.0
5.3 mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:NCVE-2026-49299
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.
Severity
- EPSS
- 0.3% chance of exploitation in the next 30 days; higher than 22% of CVEs (scores of 2026-10-31)
- CWE
- CWE-863
- Published
- Modified
- Record from
- the NVD, synced
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-xv24-hxh9-2hh9 | PyPI | neutron | >=28.0.0 <28.0.1 | 28.0.1 |
| GHSA-xv24-hxh9-2hh9 | PyPI | neutron | >=27.0.0 <27.0.3 | 27.0.3 |
| GHSA-xv24-hxh9-2hh9 | PyPI | neutron | >=26.0.0 <26.0.4 | 26.0.4 |
| PYSEC-2026-2678 | PyPI | neutron | >=26.0.0 <26.0.4 >=27.0.0 <27.0.3 >=28.0.0 <28.0.1 | 26.0.4, 27.0.3, 28.0.1 |