{"id":"CVE-2013-2030","aliases":["PYSEC-2026-911"],"url":"https://o3.security/vulnerability/CVE-2013-2030","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.","published":"2022-05-17T04:44:52Z","modified":"2026-07-07T11:56:36.143759685Z","cvss":{"score":4.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N"},"epss":{"score":0.0024,"percentile":0.15007,"asOf":"2026-09-10"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"python-keystoneclient","fixedVersion":"0.2.4"}],"fix":{"url":"https://github.com/openstack/nova/commit/58d6879b1caaa750c39c8e452a0634c24ffef2ce","label":"openstack/nova@58d6879"},"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"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-07T11:56:36.143759685Z"}}