Bug 2482994 (CVE-2026-49299)

Summary: CVE-2026-49299 openstack-neutron: OpenStack Neutron: Unauthorized tag modification due to policy enforcement mismatch
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: eglynn, jjoyce, jpretori, jschluet, kinaduarte, lhh, mburns, mgarciac
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in OpenStack Neutron. The tagging controller incorrectly enforces plural policy action names for single-tag write operations, while the defined policy rules use singular names. This mismatch allows a project reader to bypass intended policy restrictions, enabling them to create and update tags on resources within the same project. This could lead to unauthorized modification of resource metadata.
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Description OSIDB Bzimport 2026-05-28 23:02:29 UTC
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.

Comment 2 imaginarydeft 2026-06-22 09:55:01 UTC
https://bugzilla.redhat.com/show_bug.cgi?id=2482994 It's truly an impressive topic with more updates to OpenStack Neutron. Each version https://blockblast-2.io shares and updates with impressive features.