{"id":"PYSEC-2026-865","summary":"OpenStack Nova denial of service through compressed disk images","details":"OpenStack Compute (Nova) Folsom, Grizzly, and Havana does not properly verify the virtual size of a QCOW2 image, which allows local users to cause a denial of service (host file system disk consumption) via a compressed QCOW2 image.  NOTE: this issue is due to an incomplete fix for CVE-2013-2096.","aliases":["CVE-2013-4463","GHSA-5644-2v3h-5w4x"],"modified":"2026-07-07T11:45:21.948075697Z","published":"2026-07-06T08:03:25.984717Z","references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2013-4463"},{"type":"WEB","url":"https://bugs.launchpad.net/nova/+bug/1206081"},{"type":"PACKAGE","url":"https://github.com/openstack/nova"},{"type":"WEB","url":"http://github.com/openstack/nova/commit/3cdfe894ab58f7b91bf7fb690fc5bc724e44066f"},{"type":"WEB","url":"http://github.com/openstack/nova/commit/f6810be4ae1a6c93e7d8017ee67d5344dfdf4a30"},{"type":"WEB","url":"http://rhn.redhat.com/errata/RHSA-2014-0112.html"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2013/10/31/3"},{"type":"WEB","url":"http://www.ubuntu.com/usn/USN-2247-1"},{"type":"PACKAGE","url":"https://pypi.org/project/nova"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-5644-2v3h-5w4x"}],"affected":[{"package":{"name":"nova","ecosystem":"PyPI","purl":"pkg:pypi/nova"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"12.0.0a0"}]}],"database_specific":{"source":"https://github.com/pypa/advisory-database/blob/main/vulns/nova/PYSEC-2026-865.yaml"}}],"schema_version":"1.7.5"}