DEBIAN-CVE-2026-55707

Source
https://security-tracker.debian.org/tracker/CVE-2026-55707
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-55707.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-55707
Upstream
Published
2026-08-05T06:16:37Z
Modified
2026-09-14T17:03:19Z
Severity
  • 7.1 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/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 CVSS Calculator
Summary
[none]
Details

In OpenStack Neutron before 28.0.2, the subnetpool onboarding API does not verify ownership of the target subnets. An authenticated user can onboard subnets from another project's shared network into their own subnetpool, mutating the victim's subnet state and altering L3 routing and address scope behavior for victim routers.

References

Affected packages

Debian:12 / neutron

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:21.0.0-7+deb12u1

Affected versions

2:21.*
2:21.0.0-7

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-55707.json"

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+deb13u3

Affected versions

2:26.*
2:26.0.0-9
2:26.0.0-9+deb13u1
2:26.0.3-0+deb13u2

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-55707.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
2:28.0.1-2

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
2:28.0.0-7
2:28.0.0-8
2:28.0.0-9
2:28.0.1-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-55707.json"