MEDIUM

GHSA-xv24-hxh9-2hh9

OpenStack Neutron has an Incorrect Authorization issue

Details

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.

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI / neutron

Introduced in: 28.0.0 Fixed in: 28.0.1

Fix pip install --upgrade 'neutron>=28.0.1'

PyPI / neutron

Introduced in: 27.0.0 Fixed in: 27.0.3

Fix pip install --upgrade 'neutron>=27.0.3'

PyPI / neutron

Introduced in: 26.0.0 Fixed in: 26.0.4

Fix pip install --upgrade 'neutron>=26.0.4'

References

https://nvd.nist.gov/vuln/detail/CVE-2026-49299 [ADVISORY]
https://bugs.launchpad.net/bugs/2150132 [WEB]
https://github.com/openstack/neutron [PACKAGE]
https://review.opendev.org/c/openstack/neutron/+/989099 [WEB]
https://www.openwall.com/lists/oss-security/2026/05/28/8 [WEB]
http://www.openwall.com/lists/oss-security/2026/06/02/7 [WEB]