{"id":"DEBIAN-CVE-2026-49299","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.","modified":"2026-09-14T17:03:17.611333722Z","published":"2026-05-28T22:17:02.093Z","upstream":["CVE-2026-49299"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-49299"}],"affected":[{"package":{"name":"neutron","ecosystem":"Debian:12","purl":"pkg:deb/debian/neutron?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2:21.0.0-7","2:21.0.0-7+deb12u1","2:22.0.0-1","2:22.0.0-2","2:22.0.0~rc1-1","2:22.0.0~rc1-2","2:22.0.1-1","2:22.0.1-2","2:23.0.0-1","2:23.0.0-2","2:23.0.0~b3-1","2:23.0.0~rc1-1","2:24.0.0-1","2:24.0.0-2","2:24.0.0-3","2:24.0.0-3.1","2:24.0.0~rc1-1","2:25.0.0-1","2:25.0.0-2","2:25.0.0-3","2:25.0.0-4","2:25.0.0-5","2:25.0.0~rc1-1","2:25.0.0~rc1-2","2:25.0.0~rc2-1","2:25.1.0-1","2:25.1.0-3","2:26.0.0-1","2:26.0.0-2","2:26.0.0-3","2:26.0.0-4","2:26.0.0-5","2:26.0.0-6","2:26.0.0-8","2:26.0.0-9","2:26.0.0~rc1-1","2:26.0.0~rc1-3","2:26.0.0~rc2-1","2:27.0.0-1","2:27.0.0~rc1-1","2:27.0.0~rc1-2","2:27.0.1-1","2:27.0.1-2","2:27.0.1-3","2:27.0.1-4","2:27.0.1-5","2:27.0.1-6","2:28.0.0-1","2:28.0.0-2","2:28.0.0-3","2:28.0.0-4","2:28.0.0-5","2:28.0.0-6","2:28.0.0-7","2:28.0.0-8","2:28.0.0-9","2:28.0.0~rc1-1","2:28.0.0~rc1-2","2:28.0.0~rc2-1","2:28.0.0~rc2-2","2:28.0.1-1","2:28.0.1-2","2:29.0.0~rc1-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-49299.json"}},{"package":{"name":"neutron","ecosystem":"Debian:13","purl":"pkg:deb/debian/neutron?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:26.0.0-9+deb13u1"}]}],"versions":["2:26.0.0-9"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-49299.json"}},{"package":{"name":"neutron","ecosystem":"Debian:14","purl":"pkg:deb/debian/neutron?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:28.0.0-4"}]}],"versions":["2:26.0.0-9","2:27.0.0-1","2:27.0.0~rc1-1","2:27.0.0~rc1-2","2:27.0.1-1","2:27.0.1-2","2:27.0.1-3","2:27.0.1-4","2:27.0.1-5","2:27.0.1-6","2:28.0.0-1","2:28.0.0-2","2:28.0.0-3","2:28.0.0~rc1-1","2:28.0.0~rc1-2","2:28.0.0~rc2-1","2:28.0.0~rc2-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-49299.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}