{"answers":{"affected":"3 open source packages ship an affected version, including neutron.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-50266 exists.","fix":"Upgrade neutron to 28.0.1 or later.","what":"CVE-2026-50266 is a low-severity missing authorization vulnerability in OpenStack Neutron, published on 4 Jun 2026. An attacker needs administrator access to exploit it, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-50266 and fix it if it is affected.\n\nWhat it is: CVE-2026-50266 is a low-severity missing authorization vulnerability in OpenStack Neutron, published on 4 Jun 2026. An attacker needs administrator access to exploit it, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-50266 exists.\n\nAffected packages and fixed versions:\n- neutron (PyPI): affected all versions; fixed in 28.0.1\n- neutron (PyPI): affected all versions; fixed in 28.0.1\n- neutron (PyPI): affected all versions; fixed in 28.0.1\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-2026-50266/ (Markdown: https://insights.sbomify.com/CVE-2026-50266/index.md)","id":"CVE-2026-50266","markdown":"https://insights.sbomify.com/CVE-2026-50266/index.md","name":"CVE-2026-50266","record":{"aliases":["DEBIAN-CVE-2026-50266","GHSA-qmc5-gv6v-8p22","PYSEC-2026-3491","UBUNTU-CVE-2026-50266"],"analysis":{"component_type":"cloud_service","fix_type":"upgrade","impacts":["security_bypass","data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"OpenStack Neutron","requires_auth":"high_privilege","summary":"Project managers can spoof network services on shared networks due to incorrect RBAC policies, bypassing security protections against other tenants.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[],"cvss":{"score":2.2,"severity":"low","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-863","name":"Incorrect Authorization"}],"description":"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).","ecosystems":["PyPI"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"OpenStack Neutron: Neutron port RBAC policy bypass allows project managers to set trusted device owners on shared networks","id":"CVE-2026-50266","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":3,"n_references":5,"next":{"headline":"Steeltoe: TLS private keys written to /tmp with default permissions, never deleted","id":"CVE-2026-50267"},"packages":[{"ecosystem":"PyPI","fixed":["28.0.1"],"introduced":["0"],"last_affected":[],"package":"neutron","purl":null,"source":"GHSA-qmc5-gv6v-8p22"},{"ecosystem":"PyPI","fixed":["28.0.1"],"introduced":["0"],"last_affected":[],"package":"neutron","purl":"pkg:pypi/neutron","source":"GHSA-qmc5-gv6v-8p22"},{"ecosystem":"PyPI","fixed":["28.0.1"],"introduced":["0"],"last_affected":[],"package":"neutron","purl":"pkg:pypi/neutron","source":"PYSEC-2026-3491"}],"prev":{"headline":"Memory corruption in Red Hat Enterprise Linux 10","id":"CVE-2026-50264"},"products":["Neutron"],"published":"2026-06-04","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-06-04","vendors":["OpenStack"]},"summary":"Project managers can spoof network services on shared networks due to incorrect RBAC policies, bypassing security protections against other tenants.","url":"https://insights.sbomify.com/CVE-2026-50266/"}