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.
History

Fri, 29 May 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 29 May 2026 01:15:00 +0000

Type Values Removed Values Added
Title Policy Misconfiguration Allows Unauthorized Tag Manipulation in OpenStack Neutron

Thu, 28 May 2026 22:15:00 +0000

Type Values Removed Values Added
Description 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.
First Time appeared Openstack
Openstack neutron
Weaknesses CWE-863
CPEs cpe:2.3:a:openstack:neutron:*:*:*:*:*:*:*:*
Vendors & Products Openstack
Openstack neutron
References
Metrics cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-05-29T14:04:44.001Z

Reserved: 2026-05-28T21:53:02.642Z

Link: CVE-2026-49299

cve-icon Vulnrichment

Updated: 2026-05-29T14:04:32.696Z

cve-icon NVD

Status : Deferred

Published: 2026-05-28T22:17:02.093

Modified: 2026-05-29T15:39:34.620

Link: CVE-2026-49299

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-29T01:00:12Z