{"action":"Upgrade keystone to 27.0.2 or later.","affected":[{"fixed":"27.0.2","introduced":"14.0.0"},{"fixed":"28.0.2","introduced":"28.0.0"},{"fixed":"29.0.2","introduced":"29.0.0"}],"component":"keystone","cve_ids":["CVE-2026-42999"],"ecosystem":"PyPI","epss":0.00329,"exploited":false,"fixed_versions":["27.0.2","28.0.2","29.0.2"],"ghsa_id":"GHSA-2r23-2g6v-2m5f","id":"tcs_01M5KHCCYYBE3V25Z7KJ07T3ZM","modified_at":"2026-07-13T16:45:04.870559314Z","published_at":"2026-05-28T19:16:37.630Z","references":["https://osv.dev/vulnerability/PYSEC-2026-600","https://access.redhat.com/security/cve/CVE-2026-42999","https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42999.json","https://bugzilla.redhat.com/show_bug.cgi?id=2482840","https://bugs.launchpad.net/keystone/+bug/2148398","https://security.openstack.org/ossa/OSSA-2026-015.html","https://github.com/advisories/GHSA-2r23-2g6v-2m5f"],"severity":{"label":"high","score":8.8},"sources":[{"source":"osv","source_id":"PYSEC-2026-600","url":"https://osv.dev/vulnerability/PYSEC-2026-600"}],"summary":"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 v"}