A flaw was found in OpenStack Keystone. A remote attacker could exploit this vulnerability by sending a large HTTP request, specifically by providing a long tenant name when requesting a token. This could lead to a denial of service, consuming excessive CPU and memory resources on the affected system.
History

Tue, 07 Apr 2026 07:15:00 +0000

Type Values Removed Values Added
Description OpenStack 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. A flaw was found in OpenStack Keystone. A remote attacker could exploit this vulnerability by sending a large HTTP request, specifically by providing a long tenant name when requesting a token. This could lead to a denial of service, consuming excessive CPU and memory resources on the affected system.
Title Keystone: Large HTTP request DoS Keystone: openstack keystone: denial of service via large http request with long tenant name
Weaknesses CWE-1284
CPEs cpe:/a:redhat:openstack:13
cpe:/a:redhat:openstack:16.2
cpe:/a:redhat:openstack:17.1
cpe:/a:redhat:openstack:18.0
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2013-04-12T22:00:00.000Z

Updated: 2026-04-07T06:55:17.958Z

Reserved: 2012-12-06T00:00:00.000Z

Link: CVE-2013-0270

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2013-04-12T22:55:01.070

Modified: 2026-04-07T07:16:23.067

Link: CVE-2013-0270

cve-icon Redhat

Severity : Moderate

Publid Date: 2013-01-13T00:00:00Z

Links: CVE-2013-0270 - Bugzilla