{"answers":{"affected":"3 open source packages ship an affected version, including keystone. It affects 1 product.","exploited":"There is no known exploitation of CVE-2016-4911 in the wild and no public exploit code.","fix":"Upgrade keystone to 9.0.1 or later.","what":"CVE-2016-4911 is a medium-severity authentication bypass vulnerability in n/a, published on 13 Jun 2016. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2016-4911 and fix it if it is affected.\n\nWhat it is: CVE-2016-4911 is a medium-severity authentication bypass vulnerability in n/a, published on 13 Jun 2016. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2016-4911 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- keystone (PyPI): affected from 9.0.0; fixed in 9.0.1\n- keystone (PyPI): affected from 9.0.0; fixed in 9.0.1\n- keystone (PyPI): affected from 9.0.0; fixed in 9.0.1\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-2016-4911/ (Markdown: https://insights.sbomify.com/CVE-2016-4911/index.md)","id":"CVE-2016-4911","markdown":"https://insights.sbomify.com/CVE-2016-4911/index.md","name":"CVE-2016-4911","record":{"aliases":["DEBIAN-CVE-2016-4911","GHSA-f82m-w3p3-cgp3","PYSEC-2016-38"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"OpenStack Identity","requires_auth":"low_privilege","summary":"Remote authenticated users can bypass access restrictions and prevent token revocation by rescoping tokens in OpenStack Keystone.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"openstack_identity","vendor":"keystone"}],"cvss":{"score":4.3,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-284","name":"Improper Access Control"}],"description":"The Fernet Token Provider in OpenStack Identity (Keystone) 9.0.x before 9.0.1 (mitaka) allows remote authenticated users to prevent revocation of a chain of tokens and bypass intended access restrictions by rescoping a token.","ecosystems":["PyPI"],"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":"OpenStack Identity Keystone Improper Access Control","id":"CVE-2016-4911","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"auth_bypass","year":"2016"},"n_packages":3,"n_references":6,"next":{"headline":"Null dereference in n/a","id":"CVE-2016-4912"},"packages":[{"ecosystem":"PyPI","fixed":["9.0.1"],"introduced":["9.0.0"],"last_affected":[],"package":"keystone","purl":null,"source":"GHSA-f82m-w3p3-cgp3"},{"ecosystem":"PyPI","fixed":["9.0.1"],"introduced":["9.0.0"],"last_affected":[],"package":"keystone","purl":"pkg:pypi/keystone","source":"GHSA-f82m-w3p3-cgp3"},{"ecosystem":"PyPI","fixed":["9.0.1"],"introduced":["9.0.0"],"last_affected":[],"package":"keystone","purl":"pkg:pypi/keystone","source":"PYSEC-2016-38"}],"prev":{"headline":"Missing authorization in Cybozu Garoon","id":"CVE-2016-4910"},"products":["n/a"],"published":"2016-06-13","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":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-06","vendors":["n/a"]},"summary":"Remote authenticated users can bypass access restrictions and prevent token revocation by rescoping tokens in OpenStack Keystone.","url":"https://insights.sbomify.com/CVE-2016-4911/"}