{"action":"Upgrade nova to 15.1.1 or later.","affected":[{"fixed":"15.1.1","introduced":"15.0.0"},{"fixed":"16.1.2","introduced":"16.0.0"}],"component":"nova","cve_ids":["CVE-2017-18191"],"ecosystem":"PyPI","epss":0.03715,"exploited":false,"fixed_versions":["15.1.1","16.1.2"],"ghsa_id":"GHSA-ffmh-r67w-m88f","id":"tcs_01M5KHCXQEKE76HCRRCFFZ0PAP","modified_at":"2026-07-06T08:00:47.574623169Z","published_at":"2026-07-02T14:13:24.655107Z","references":["https://osv.dev/vulnerability/PYSEC-2026-689","https://nvd.nist.gov/vuln/detail/CVE-2017-18191","https://github.com/openstack/nova/commit/0225a61fc4557c1257383a654f0741f7ef2ddeac","https://github.com/openstack/nova/commit/5b64a1936122eeb35f37a09f9d38159e1a224c58","https://github.com/openstack/nova/commit/cd3eb60c2c00bcccfa9ccd4bf9d1a96ae7a5cd88","https://access.redhat.com/errata/RHSA-2018:2332","https://access.redhat.com/errata/RHSA-2018:2714","https://access.redhat.com/errata/RHSA-2018:2855","https://github.com/openstack/nova","https://launchpad.net/bugs/1739593","https://review.openstack.org/539893","https://security.openstack.org/ossa/OSSA-2018-001.html","http://openwall.com/lists/oss-security/2018/04/20/3","http://www.securityfocus.com/bid/103104","https://pypi.org/project/nova","https://github.com/advisories/GHSA-ffmh-r67w-m88f"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"PYSEC-2026-689","url":"https://osv.dev/vulnerability/PYSEC-2026-689"}],"summary":"OpenStack Nova Denial of service attack on the compute host"}