CVE-2026-49299

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.

Affected Software

VendorProductVersion RangeStatus
OpenStackNeutron26.0.0 < 26.0.4affected
OpenStackNeutron27.0.0 < 27.0.3affected
OpenStackNeutron28.0.0 < 28.0.1affected

Weaknesses

  • CWE-863: CWE-863 Incorrect Authorization

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

CVE Program Container

Additional References

References