CVE catalog

CVE-2026-50266

Severity: Medium · CVSS 6.6CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Published: Jun 4, 2026, 4:18:39 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.26% · Oct 25, 2026

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).

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	neutron	sid	`2:29.0.0-9`	fixed
Debian	neutron	forky	`2:28.0.1-2`	fixed
Debian	neutron	trixie	`2:26.0.3-0+deb13u3`	fixed
Debian	neutron	trixie-security	`2:26.0.3-0+deb13u3`	fixed
Debian	neutron	bookworm	`2:21.0.0-7`	not affected
Debian	neutron	bookworm-security	`2:21.0.0-7+deb12u1`	not affected

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	neutron	source	sid	`2:28.0.0-7`	not yet assigned	Not reported	[1138844]
Debian	neutron	source	forky	`2:28.0.0-7`	not yet assigned	Not reported	[1138844]
Debian	neutron	source	trixie	`2:26.0.3-0+deb13u2`	not yet assigned	Not reported	[1138844]
Debian	neutron	source	bookworm	`Not affected`	unimportant	Not reported	[1138844]

[Debian bug #1138844]

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[neutron-api]Not affected
Source package: [neutron]
Details (4)
- 2:21.0.0-7 · all · bookworm
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7 · all · bookworm
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  nvd · neutron · debian · bookworm
[neutron-common]Not affected
Source package: [neutron]
Details (4)
- 2:21.0.0-7 · all · bookworm
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7 · all · bookworm
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  nvd · neutron · debian · bookworm
[neutron-dhcp-agent]Not affected
Source package: [neutron]
Details (4)
- 2:21.0.0-7 · all · bookworm
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7 · all · bookworm
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  nvd · neutron · debian · bookworm
[neutron-doc]Not affected
Source package: [neutron]
Details (4)
- 2:21.0.0-7 · all · bookworm
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7 · all · bookworm
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  nvd · neutron · debian · bookworm
[neutron-l3-agent]Not affected
Source package: [neutron]
Details (4)
- 2:21.0.0-7 · all · bookworm
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7 · all · bookworm
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  nvd · neutron · debian · bookworm
[neutron-linuxbridge-agent]Not affected
Source package: [neutron]
Details (4)
- 2:21.0.0-7 · all · bookworm
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7 · all · bookworm
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  nvd · neutron · debian · bookworm
[neutron-macvtap-agent]Not affected
Source package: [neutron]
Details (4)
- 2:21.0.0-7 · all · bookworm
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7 · all · bookworm
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  nvd · neutron · debian · bookworm
[neutron-metadata-agent]Not affected
Source package: [neutron]
Details (4)
- 2:21.0.0-7 · all · bookworm
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7 · all · bookworm
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  nvd · neutron · debian · bookworm
[neutron-metering-agent]Not affected
Source package: [neutron]
Details (4)
- 2:21.0.0-7 · all · bookworm
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7 · all · bookworm
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  nvd · neutron · debian · bookworm
[neutron-openvswitch-agent]Not affected
Source package: [neutron]
Details (4)
- 2:21.0.0-7 · all · bookworm
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7 · all · bookworm
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  nvd · neutron · debian · bookworm
[neutron-ovn-metadata-agent]Not affected
Source package: [neutron]
Details (4)
- 2:21.0.0-7 · all · bookworm
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7 · all · bookworm
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  nvd · neutron · debian · bookworm
[neutron-plugin-nec-agent]Not affected
Source package: [neutron]
Details (4)
- 2:21.0.0-7 · all · bookworm
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7 · all · bookworm
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  nvd · neutron · debian · bookworm
[neutron-rpc-server]Not affected
Source package: [neutron]
Details (4)
- 2:21.0.0-7 · all · bookworm
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7 · all · bookworm
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  nvd · neutron · debian · bookworm
[neutron-server]Not affected
Source package: [neutron]
Details (4)
- 2:21.0.0-7 · all · bookworm
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7 · all · bookworm
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  nvd · neutron · debian · bookworm
[neutron-sriov-agent]Not affected
Source package: [neutron]
Details (4)
- 2:21.0.0-7 · all · bookworm
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7 · all · bookworm
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  nvd · neutron · debian · bookworm
[python3-neutron]Not affected
Source package: [neutron]
Details (4)
- 2:21.0.0-7 · all · bookworm
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7 · all · bookworm
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  nvd · neutron · debian · bookworm
- 2:21.0.0-7+deb12u1 · all · bookworm-security
  Not affected
  nvd · neutron · debian · bookworm

[Debian 13 (Trixie)]

[neutron-api]Fixed
Source package: [neutron]
Details (5)
- 2:26.0.3-0+deb13u2 · all · trixie
  Fixed · Fixed: 2:26.0.3-0+deb13u2
  nvd · neutron · debian · 13
- 2:26.0.3-0+deb13u2 · all · trixie
  Fixed · Fixed: 2:26.0.3-0+deb13u2
  nvd · neutron · debian · 13
- 2:26.0.3-0+deb13u2 · all · trixie-security · Historical version
  Fixed · Fixed: 2:26.0.3-0+deb13u2
  nvd · neutron · debian · 13
- 2:26.0.3-0+deb13u3 · all · trixie-security
  Fixed · Fixed: 2:26.0.3-0+deb13u2
  nvd · neutron · debian · 13
- 2:26.0.3-0+deb13u3 · all · trixie-security
  Fixed · Fixed: 2:26.0.3-0+deb13u2
  nvd · neutron · debian · 13
[neutron-common]Fixed
Source package: [neutron]
Details (5)
- 2:26.0.3-0+deb13u2 · all · trixie
  Fixed · Fixed: 2:26.0.3-0+deb13u2
  nvd · neutron · debian · 13
- 2:26.0.3-0+deb13u2 · all · trixie
  Fixed · Fixed: 2:26.0.3-0+deb13u2
  nvd · neutron · debian · 13
- 2:26.0.3-0+deb13u2 · all · trixie-security · Historical version
  Fixed · Fixed: 2:26.0.3-0+deb13u2
  nvd · neutron · debian · 13
- 2:26.0.3-0+deb13u3 · all · trixie-security
  Fixed · Fixed: 2:26.0.3-0+deb13u2
  nvd · neutron · debian · 13
- 2:26.0.3-0+deb13u3 · all · trixie-security
  Fixed · Fixed: 2:26.0.3-0+deb13u2
  nvd · neutron · debian · 13
[neutron-dhcp-agent]Fixed
Source package: [neutron]
Details (5)
- 2:26.0.3-0+deb13u2 · all · trixie
  Fixed · Fixed: 2:26.0.3-0+deb13u2
  nvd · neutron · debian · 13
- 2:26.0.3-0+deb13u2 · all · trixie
  Fixed · Fixed: 2:26.0.3-0+deb13u2
  nvd · neutron · debian · 13
- 2:26.0.3-0+deb13u2 · all · trixie-security · Historical version
  Fixed · Fixed: 2:26.0.3-0+deb13u2
  nvd · neutron · debian · 13
- 2:26.0.3-0+deb13u3 · all · trixie-security
  Fixed · Fixed: 2:26.0.3-0+deb13u2
  nvd · neutron · debian · 13
- 2:26.0.3-0+deb13u3 · all · trixie-security
  Fixed · Fixed: 2:26.0.3-0+deb13u2
  nvd · neutron · debian · 13
[neutron-doc]Fixed
Source package: [neutron]
Details (5)
- 2:26.0.3-0+deb13u2 · all · trixie
  Fixed · Fixed: 2:26.0.3-0+deb13u2
  nvd · neutron · debian · 13
- 2:26.0.3-0+deb13u2 · all · trixie
  Fixed · Fixed: 2:26.0.3-0+deb13u2
  nvd · neutron · debian · 13
- 2:26.0.3-0+deb13u2 · all · trixie-security · Historical version
  Fixed · Fixed: 2:26.0.3-0+deb13u2
  nvd · neutron · debian · 13
- 2:26.0.3-0+deb13u3 · all · trixie-security
  Fixed · Fixed: 2:26.0.3-0+deb13u2
  nvd · neutron · debian · 13
- 2:26.0.3-0+deb13u3 · all · trixie-security
  Fixed · Fixed: 2:26.0.3-0+deb13u2
  nvd · neutron · debian · 13

Next results

Observed: Oct 27, 2026, 7:16:42 AM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]