DEBIAN-CVE-2026-50266

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Source
https://security-tracker.debian.org/tracker/CVE-2026-50266
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-50266.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-50266
Upstream
Published
2026-06-04T17:16:33Z
Modified
2026-09-14T17:03:17Z
Severity
  • 2.2 (Low) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
Summary
[none]
Details

In OpenStack Neutron before 28.0.1, a project manager can create or update a port on a shared network owned by another project and set device_owner to a value that has "network:" at the beginning ("network:dhcp" for example). The default port RBAC policies incorrectly included PROJECT_MANAGER without requiring network ownership, allowing any project manager to obtain trusted network-service port behavior on shared networks. Depending on backend and deployment, this can bypass anti-spoofing and security group protections, enabling DHCP, MAC, or IP spoofing against other tenants on the shared network. This is a regression of CVE-2015-5240 (OSSA-2015-018).

References

Affected packages

Debian:13 / neutron

Package

Name
neutron
Purl
pkg:deb/debian/neutron?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:26.0.3-0+deb13u2

Affected versions

2:26.*
2:26.0.0-9
2:26.0.0-9+deb13u1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-50266.json"

Debian:14 / neutron

Package

Name
neutron
Purl
pkg:deb/debian/neutron?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:28.0.0-7

Affected versions

2:26.*
2:26.0.0-9
2:27.*
2:27.0.0~rc1-1
2:27.0.0~rc1-2
2:27.0.0-1
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.*
2:28.0.0~rc1-1
2:28.0.0~rc1-2
2:28.0.0~rc2-1
2:28.0.0~rc2-2
2:28.0.0-1
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

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-50266.json"