CVE-2026-49299 (GCVE-0-2026-49299)

Vulnerability from cvelistv5 – Published: 2026-05-28 21:53 – Updated: 2026-06-02 17:33
VLAI
Summary
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
5.3 (Medium)
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
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-29 14:04 UTC
CWE
  • CWE-863 - Incorrect Authorization
Assigner
mitre CNA under the mitre root
CNA scorecard E 29/100 over 2193 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
OpenStack Neutron Affected: 26.0.0 , < 26.0.4 (semver)
Affected: 27.0.0 , < 27.0.3 (semver)
Affected: 28.0.0 , < 28.0.1 (semver)
    cpe:2.3:a:openstack:neutron:*:*:*:*:*:*:*:*
    cpe:2.3:a:openstack:neutron:*:*:*:*:*:*:*:*
    cpe:2.3:a:openstack:neutron:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website
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