{"answers":{"affected":"7 open source packages ship an affected version, including keystone. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-42999 in the wild and no public exploit code.","fix":"Upgrade keystone to a fixed version for your release line: 27.0.2, 28.0.2 or 29.0.2.","what":"CVE-2026-42999 is a medium-severity missing authorization vulnerability in OpenStack Keystone, published on 28 May 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-42999 and fix it if it is affected.\n\nWhat it is: CVE-2026-42999 is a medium-severity missing authorization vulnerability in OpenStack Keystone, published on 28 May 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-2026-42999 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- keystone (PyPI): affected from 14.0.0; fixed in 27.0.2, 28.0.2, 29.0.2\n- keystone (PyPI): affected from 14.0.0; fixed in 27.0.2\n- keystone (PyPI): affected from 14.0.0; fixed in 27.0.2\n- keystone (PyPI): affected from 28.0.0; fixed in 28.0.2\n- keystone (PyPI): affected from 28.0.0; fixed in 28.0.2\n- keystone (PyPI): affected from 29.0.0; fixed in 29.0.2\n- keystone (PyPI): affected from 29.0.0; fixed in 29.0.2\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-2026-42999/ (Markdown: https://insights.sbomify.com/CVE-2026-42999/index.md)","id":"CVE-2026-42999","markdown":"https://insights.sbomify.com/CVE-2026-42999/index.md","name":"CVE-2026-42999","record":{"aliases":["DEBIAN-CVE-2026-42999","GHSA-2r23-2g6v-2m5f","PYSEC-2026-600","UBUNTU-CVE-2026-42999","USN-8433-1"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["privilege_escalation","data_read","data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"OpenStack Identity Service","requires_auth":"low_privilege","summary":"Authenticated users can bypass RBAC checks by injecting policy attributes into request bodies, allowing unauthorized access to other users' resources.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"keystone","vendor":"openstack"}],"cvss":{"score":6,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L","version":"3.1"},"cwes":[{"id":"CWE-639","name":"Authorization Bypass Through User-Controlled Key"},{"id":"CWE-863","name":"Incorrect Authorization"}],"description":"An issue was discovered in OpenStack Keystone before 29.0.2. The Keystone RBAC policy enforcer in enforce_call unconditionally merges the raw JSON request body into the policy enforcement dictionary via policy_dict.update(json_input.copy()), overwriting trusted target data that was previously set from database lookups. Because flask.request.get_json is called with force=True, this works regardless of Content-Type or HTTP method. Any authenticated user can inject arbitrary policy target attributes (e.g., user_id, project_id) into the request body to bypass RBAC checks and perform unauthorized operations on resources belonging to other users or projects. This was introduced in commit 5ea59f52 (Rocky/14.0.0).","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 Keystone has an Authorization Bypass","id":"CVE-2026-42999","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":7,"n_references":2,"next":{"headline":"OpenStack Keystone has an Incorrect Authorization issue","id":"CVE-2026-43000"},"packages":[{"ecosystem":"PyPI","fixed":["27.0.2","28.0.2","29.0.2"],"introduced":["14.0.0","28.0.0","29.0.0"],"last_affected":[],"package":"keystone","purl":"pkg:pypi/keystone","source":"PYSEC-2026-600"},{"ecosystem":"PyPI","fixed":["27.0.2"],"introduced":["14.0.0"],"last_affected":[],"package":"keystone","purl":null,"source":"GHSA-2r23-2g6v-2m5f"},{"ecosystem":"PyPI","fixed":["27.0.2"],"introduced":["14.0.0"],"last_affected":[],"package":"keystone","purl":"pkg:pypi/keystone","source":"GHSA-2r23-2g6v-2m5f"},{"ecosystem":"PyPI","fixed":["28.0.2"],"introduced":["28.0.0"],"last_affected":[],"package":"keystone","purl":null,"source":"GHSA-2r23-2g6v-2m5f"},{"ecosystem":"PyPI","fixed":["28.0.2"],"introduced":["28.0.0"],"last_affected":[],"package":"keystone","purl":"pkg:pypi/keystone","source":"GHSA-2r23-2g6v-2m5f"},{"ecosystem":"PyPI","fixed":["29.0.2"],"introduced":["29.0.0"],"last_affected":[],"package":"keystone","purl":null,"source":"GHSA-2r23-2g6v-2m5f"},{"ecosystem":"PyPI","fixed":["29.0.2"],"introduced":["29.0.0"],"last_affected":[],"package":"keystone","purl":"pkg:pypi/keystone","source":"GHSA-2r23-2g6v-2m5f"}],"prev":{"headline":"OpenStack Keystone doesn't verify that the user supplied in the authentication request matches the owner of the application credential","id":"CVE-2026-42998"},"products":["Keystone"],"published":"2026-05-28","related":[{"cvss_score":8.8,"headline":"Insufficient Session Expiration in OpenStack Keystone","id":"CVE-2020-12690","kev_date_added":null,"published":"2020-05-06"},{"cvss_score":8.8,"headline":"OpenStack Keystone Credential Leakage","id":"CVE-2019-19687","kev_date_added":null,"published":"2019-12-09"},{"cvss_score":7.9,"headline":"OpenStack Keystone has an Incorrect Authorization Issue","id":"CVE-2026-43001","kev_date_added":null,"published":"2026-05-01"},{"cvss_score":7.8,"headline":"OpenStack Identity (Keystone) DoS through V3 API authentication chaining","id":"CVE-2014-2828","kev_date_added":null,"published":"2014-04-15"},{"cvss_score":7.5,"headline":"OpenStack Keystone allows information disclosure during account locking","id":"CVE-2021-38155","kev_date_added":null,"published":"2021-08-06"},{"cvss_score":7.5,"headline":"OpenStack Identity Keystone and keystonemiddleware Insufficiently Protected Credentials","id":"CVE-2015-7546","kev_date_added":null,"published":"2016-02-03"},{"cvss_score":7.5,"headline":"OpenStack Keystone Improper Authentication vulnerability","id":"CVE-2012-4456","kev_date_added":null,"published":"2012-10-09"}],"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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-07-24","vendors":["OpenStack"]},"summary":"Authenticated users can bypass RBAC checks by injecting policy attributes into request bodies, allowing unauthorized access to other users' resources.","url":"https://insights.sbomify.com/CVE-2026-42999/"}