{"id":"CVE-2026-46448","aliases":["GHSA-mfg3-p6m3-gjgr","PYSEC-2026-2686"],"url":"https://o3.security/vulnerability/CVE-2026-46448","summary":"OpenStack Nova: Nova scheduler hint injection bypasses Placement resource claims and scheduling constraints","details":"In OpenStack Nova before 33.0.2, the server create API does not strip certain hint data. The resulting instance has no Placement allocation.","published":"2026-06-16T00:00:00Z","modified":"2026-07-15T01:48:58.855712220Z","cvss":{"score":5.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"nova","fixedVersion":null},{"ecosystem":"PyPI","name":"nova","fixedVersion":"32.2.1"},{"ecosystem":"PyPI","name":"nova","fixedVersion":"33.0.2"}],"fix":null,"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/06/16/5"},{"type":"WEB","url":"https://bugs.launchpad.net/nova/+bug/2151252"},{"type":"WEB","url":"https://www.openwall.com/lists/oss-security/2026/06/16/5"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46448.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46448"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-15T01:48:58.855712220Z"}}