{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-55707 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-55707 is a high-severity missing authorization vulnerability in OpenStack Neutron, published on 5 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-55707 and fix it if it is affected.\n\nWhat it is: CVE-2026-55707 is a high-severity missing authorization vulnerability in OpenStack Neutron, published on 5 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-55707 in the wild and no public exploit code.\n\nAffected product: OpenStack Neutron. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-55707/ (Markdown: https://insights.sbomify.com/CVE-2026-55707/index.md)","id":"CVE-2026-55707","markdown":"https://insights.sbomify.com/CVE-2026-55707/index.md","name":"CVE-2026-55707","record":{"aliases":["DEBIAN-CVE-2026-55707","GHSA-v5q5-3vcq-49r5","UBUNTU-CVE-2026-55707"],"analysis":{"component_type":"cloud_service","fix_type":"upgrade","impacts":["data_modify","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"OpenStack Neutron","requires_auth":"low_privilege","summary":"An authenticated user can onboard subnets from another project's shared network into their own subnetpool, altering victim routing and address scope.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[],"cvss":{"score":7.1,"severity":"high","source":"cna","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","version":"4.0"},"cwes":[{"id":"CWE-863","name":"Incorrect Authorization"}],"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.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Missing authorization in Neutron","id":"CVE-2026-55707","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"Privacy/configuration issue when adding local data in views through 'unbound-control'","id":"CVE-2026-55708"},"packages":[],"prev":{"headline":"Auth bypass in OpenBSD","id":"CVE-2026-55706"},"products":["Neutron"],"published":"2026-08-05","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-12","vendors":["OpenStack"]},"summary":"An authenticated user can onboard subnets from another project's shared network into their own subnetpool, altering victim routing and address scope.","url":"https://insights.sbomify.com/CVE-2026-55707/"}