{"id":"PYSEC-2026-911","summary":"OpenStack Nova uses insecure keystone middleware tmpdir by default","details":"keystone/middleware/auth_token.py in OpenStack Nova Folsom, Grizzly, and Havana uses an insecure temporary directory for storing signing certificates, which allows local users to spoof servers by pre-creating this directory, which is reused by Nova, as demonstrated using /tmp/keystone-signing-nova on Fedora.","aliases":["CVE-2013-2030","GHSA-pxxv-rv32-2qgv"],"modified":"2026-07-07T11:45:49.916332676Z","published":"2026-07-06T08:03:26.363613Z","references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2013-2030"},{"type":"WEB","url":"https://github.com/openstack/nova/commit/58d6879b1caaa750c39c8e452a0634c24ffef2ce"},{"type":"WEB","url":"https://github.com/openstack/nova/commit/74aa04e2ca7942cb1e1a86dcbaffeb72d260ccd7"},{"type":"WEB","url":"https://github.com/openstack/nova/commit/7bf3e8d3e254d817ff5ae7ef1f2884b10410ca60"},{"type":"WEB","url":"https://github.com/openstack/python-keystoneclient/commit/1736e2ffb12f70eeebed019448bc14def48aa036"},{"type":"WEB","url":"https://bugs.launchpad.net/nova/+bug/1174608"},{"type":"WEB","url":"https://bugzilla.redhat.com/show_bug.cgi?id=958285"},{"type":"PACKAGE","url":"https://github.com/openstack/nova"},{"type":"WEB","url":"https://github.com/pypa/advisory-database/tree/main/vulns/nova/PYSEC-2013-45.yaml"},{"type":"WEB","url":"http://lists.fedoraproject.org/pipermail/package-announce/2013-May/105916.html"},{"type":"WEB","url":"http://lists.openstack.org/pipermail/openstack-announce/2013-May/000098.html"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2013/05/09/2"},{"type":"PACKAGE","url":"https://pypi.org/project/python-keystoneclient"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-pxxv-rv32-2qgv"}],"affected":[{"package":{"name":"python-keystoneclient","ecosystem":"PyPI","purl":"pkg:pypi/python-keystoneclient"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.2.4"}]}],"versions":["0.1.1","0.1.2","0.1.3","0.2.0","0.2.1","0.2.2","0.2.3"],"database_specific":{"source":"https://github.com/pypa/advisory-database/blob/main/vulns/python-keystoneclient/PYSEC-2026-911.yaml"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N"}]}