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Vulnerabilities CVE-2026-55707

CVE-2026-55707

High
Open
TLP:CLEAR

AI Analysis

No AI analysis yet.

Description

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.

Details

CVSS Score
7.1
EPSS Score
0.49%

39.6th percentile

CVSS Vector
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
Confidence
90%
Published
Aug 5, 2026
Last Modified
Aug 12, 2026
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