{"id":"CVE-2013-2096","aliases":["GHSA-m674-hmx2-ffhq","PYSEC-2026-876"],"title":"OpenStack Compute (Nova) does not verify the virtual size of a QCOW2 image","summary":"OpenStack Compute (Nova) does not verify the virtual size of a QCOW2 image","severity":"medium","vendor":"nova","product":"nova","ecosystem":"pip","affected":["nova < 12.0.0a0"],"patched":["nova 12.0.0a0"],"published":"2022-05-17","updated":"2026-07-07","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GHSA-m674-hmx2-ffhq","references":[{"url":"https://nvd.nist.gov/vuln/detail/CVE-2013-2096"},{"url":"https://github.com/openstack/nova/commit/0caeb8eaf20abcdc77828f5c6b79fc104619e231"},{"url":"https://github.com/openstack/nova/commit/44a8aba1d5da87d54db48079103fdef946666d80"},{"url":"https://github.com/openstack/nova"},{"url":"https://review.openstack.org/#/c/28717"},{"url":"https://review.openstack.org/#/c/28901"},{"url":"https://review.openstack.org/#/c/29192"},{"url":"https://web.archive.org/web/20130726040108/http://www.securityfocus.com/bid/59924"},{"url":"http://lists.openstack.org/pipermail/openstack-announce/2013-May/000102.html"},{"url":"http://www.ubuntu.com/usn/USN-1831-1"}],"tags":["osv","pip"],"epss":0.00386,"epssPercentile":0.32432,"ingestedAt":"2026-07-08T18:25:51.142Z","slug":"CVE-2013-2096","body":"## Overview\n\nOpenStack Compute (Nova) Folsom, Grizzly, and Havana does not verify the virtual size of a QCOW2 image, which allows local users to cause a denial of service (host file system disk consumption) by creating an image with a large virtual size that does not contain a large amount of data.\n\n## Affected packages\n\n- `nova < 12.0.0a0`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `nova 12.0.0a0`","depth":"sunlit","depthScore":28,"depthScoreParts":{"impact":27.5,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}