{"id":"CVE-2013-0270","aliases":["GHSA-4ppj-4p4v-jf4p","PYSEC-2026-650"],"title":"OpenStack Keystone Denial of Service vulnerability via a large HTTP request","summary":"OpenStack Keystone Denial of Service vulnerability via a large HTTP request","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","vendor":"keystone","product":"keystone","ecosystem":"pip","affected":["keystone < 8.0.0a0"],"patched":["keystone 8.0.0a0"],"published":"2022-05-05","updated":"2026-07-06","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GHSA-4ppj-4p4v-jf4p","references":[{"url":"https://nvd.nist.gov/vuln/detail/CVE-2013-0270"},{"url":"https://github.com/openstack/keystone/commit/7691276b869a86c2b75631d5bede9f61e030d9d8"},{"url":"https://github.com/openstack/keystone/commit/82c87e5638ebaf9f166a9b07a0155291276d6fdc"},{"url":"https://access.redhat.com/security/cve/CVE-2013-0270"},{"url":"https://bugs.launchpad.net/keystone/+bug/1099025"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=909012"},{"url":"https://launchpad.net/keystone/grizzly/2013.1"},{"url":"http://rhn.redhat.com/errata/RHSA-2013-0708.html"}],"tags":["osv","pip"],"epss":0.03165,"epssPercentile":0.8743,"ingestedAt":"2026-07-08T18:25:45.517Z","slug":"CVE-2013-0270","body":"## Overview\n\nOpenStack Keystone Grizzly before 2013.1, Folsom, and possibly earlier allows remote attackers to cause a denial of service (CPU and memory consumption) via a large HTTP request, as demonstrated by a long tenant_name when requesting a token.\n\n## Affected packages\n\n- `keystone < 8.0.0a0`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `keystone 8.0.0a0`","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0.6,"exploitation":0,"ransomware":0},"changes":[]}