OpenStack Neutron has an Incorrect Authorization issue
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.
01
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-49299US | —OT elevated | — | ||
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… | ||||
02
references
External citations — patches, advisories, analysis.
- http://www.openwall.com/lists/oss-security/2026/06/02/7WEB
- https://bugs.launchpad.net/bugs/2150132WEB
- https://github.com/openstack/neutronPACKAGE
- https://nvd.nist.gov/vuln/detail/CVE-2026-49299ADVISORY
- https://review.opendev.org/c/openstack/neutron/+/989099WEB
- https://www.openwall.com/lists/oss-security/2026/05/28/8WEB
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