CVE-2013-0270

MEDIUMNVD 6.5

6.5

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.

CVSS v3: 6.5
EG Score: —
EPSS: 86.0%
KEV: Not listed

Published

April 12, 2013

Last Modified

April 29, 2026

Advisory Details (7)

Auto-updated Apr 30, 2026

Patch available. Sources: redhat.

redhat Patch Available

909012 – (CVE-2013-0270) CVE-2013-0270 OpenStack Keystone: Large HTTP request DoS

https://bugzilla.redhat.com/show_bug.cgi?id=909012

generic

Bug #1099025 “block really large requests” : Bugs : OpenStack Identity (keystone)

https://bugs.launchpad.net/keystone/+bug/1099025

generic

http://rhn.redhat.com/errata/RHSA-2013-0708.html

generic

2013.1 "grizzly" : Series grizzly : OpenStack Identity (keystone)

https://launchpad.net/keystone/grizzly/2013.1

generic

Merge "Add size validations for /tokens." into stable/folsom · openstack/keystone@82c87e5 · GitHub

https://github.com/openstack/keystone/commit/82c87e5638ebaf9f166a9b07a0155291276d6fdc

generic

Limit the size of HTTP requests. · openstack/keystone@7691276 · GitHub

https://github.com/openstack/keystone/commit/7691276b869a86c2b75631d5bede9f61e030d9d8

redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2013-0270

Affected Packages

(1 across 1 ecosystem)

PyPI(1)

Package	Vulnerable range	Fixed in	Dependents
keystone	—	8.0.0a0	—

Data Freshness Timeline

(refreshed 12× in last 7d / 19× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-27 22:48 UTCOSV refresh
2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-26 13:41 UTCepss_batch
2026-05-26 13:41 UTCepss_batch
2026-05-26 07:16 UTCepss_batch
2026-05-26 07:16 UTCepss_batch
2026-05-24 16:43 UTCepss_batch
2026-05-22 21:15 UTCepss_batch
2026-05-22 21:15 UTCepss_batch
2026-05-22 21:15 UTCepss_batch
2026-05-21 22:39 UTCepss_batch
2026-05-20 22:37 UTCepss_batch
2026-05-20 22:37 UTCepss_batch
2026-05-20 11:21 UTCepss_batch
2026-05-20 11:21 UTCepss_batch
2026-05-20 11:21 UTCepss_batch
2026-05-18 21:29 UTCepss_batch
2026-05-18 21:29 UTCepss_batch

Frequently asked(5)

What is CVE-2013-0270?

CVE-2013-0270 is a medium vulnerability published on April 12, 2013. 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…

When was CVE-2013-0270 disclosed?

CVE-2013-0270 was first published in the National Vulnerability Database on April 12, 2013, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2013-0270 actively exploited?

CVE-2013-0270 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 86.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2013-0270?

CVE-2013-0270 has a CVSS v3 base score of 6.5 (NVD).

How do I remediate CVE-2013-0270?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2013-0270, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2013-0270

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CVE-2013-0270

📅 Published

🔄 Last Modified

📋 Advisory Details (7)

909012 – (CVE-2013-0270) CVE-2013-0270 OpenStack Keystone: Large HTTP request DoS

Bug #1099025 “block really large requests” : Bugs : OpenStack Identity (keystone)

2013.1 "grizzly" : Series grizzly : OpenStack Identity (keystone)

Merge "Add size validations for /tokens." into stable/folsom · openstack/keystone@82c87e5 · GitHub

Limit the size of HTTP requests. · openstack/keystone@7691276 · GitHub

cve-details

Affected Packages

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2013-0270?

Published

Last Modified

Advisory Details (7)

Frequently asked(5)