{"id":"CVE-2016-2140","aliases":["GHSA-49jv-37hm-6gfp","PYSEC-2026-864"],"title":"OpenStack Nova host data access through resize/migration","summary":"OpenStack Nova host data access through resize/migration","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","vendor":"nova","product":"nova","ecosystem":"pip","affected":["nova >= 12.0.0, < 12.0.3"],"patched":["nova 12.0.3"],"published":"2022-05-14","updated":"2026-07-07","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GHSA-49jv-37hm-6gfp","references":[{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-2140"},{"url":"https://github.com/openstack/nova/commit/0b194187db9da28225cb5e62be3b45aff5a1c793"},{"url":"https://github.com/openstack/nova/commit/116b1210ab772c55d1ed1f715687d83877c92701"},{"url":"https://github.com/openstack/nova/commit/f302bf04ab5dda89cf8ceaeed309006da90c0666"},{"url":"https://access.redhat.com/errata/RHSA-2016:0363"},{"url":"https://access.redhat.com/errata/RHSA-2016:0364"},{"url":"https://access.redhat.com/errata/RHSA-2016:0365"},{"url":"https://access.redhat.com/errata/RHSA-2016:0366"},{"url":"https://access.redhat.com/security/cve/CVE-2016-2140"},{"url":"https://bugs.launchpad.net/nova/+bug/1548450"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1313454"},{"url":"https://github.com/openstack/nova"},{"url":"https://security.openstack.org/ossa/OSSA-2016-007.html"},{"url":"http://seclists.org/oss-sec/2016/q1/563"},{"url":"http://www.openwall.com/lists/oss-security/2016/03/08/6"},{"url":"http://www.securityfocus.com/bid/84277"}],"tags":["osv","pip"],"epss":0.01991,"epssPercentile":0.79537,"ingestedAt":"2026-07-08T18:25:45.446Z","slug":"CVE-2016-2140","body":"## Overview\n\nThe libvirt driver in OpenStack Compute (Nova) before 2015.1.4 (kilo) and 12.0.x before 12.0.3 (liberty), when using raw storage and use_cow_images is set to false, allows remote authenticated users to read arbitrary files via a crafted qcow2 header in an ephemeral or root disk.\n\n## Affected packages\n\n- `nova >= 12.0.0, < 12.0.3`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `nova 12.0.3`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":29.2,"likelihood":0.4,"exploitation":0,"ransomware":0},"changes":[]}