Incorrect Authorization Affecting neutron package, versions <2:26.0.0-9+deb13u1


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.3% (21st percentile)

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  • Snyk IDSNYK-ECHOLATEST-NEUTRON-18496103
  • published1 Aug 2026
  • disclosed28 May 2026

Introduced: 28 May 2026

CVE-2026-49299  (opens in a new tab)
CWE-863  (opens in a new tab)

How to fix?

Upgrade Echo:latest neutron to version 2:26.0.0-9+deb13u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream neutron package and not the neutron package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1