EUVD-2026-33074CVSS VectorNVD
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
2DescriptionNVD
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.
AnalysisAI
Incorrect authorization in OpenStack Neutron 26.0.0 through pre-28.0.1 allows authenticated project readers to write (create and update) tags on same-project resources, exceeding their intended read-only scope. The root cause is a naming mismatch in the tagging controller: single-tag write operations are enforced using plural policy action names (e.g., 'add_tags'), while the configured policy rules use singular names (e.g., 'add_tag'). …
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