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CVE-2013-0270

18
FAUCET Score

CVE-2013-0270 describes a denial-of-service vulnerability affecting OpenStack Keystone Grizzly before 2013.1, Folsom, and potentially earlier versions. Remote attackers can exploit this by sending large HTTP requests, such as a long tenant_name during a token request, leading to significant CPU and memory consumption. Rated with a CVSS score of 5.0, this vulnerability is easily exploitable over the network with low attack complexity, resulting in a partial availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2012.1, <= 2012.1.3CPE matchmatch criteria
cpe:2.3:a:openstack:keystone:*:*:*:*:*:*:*:*
>= 2012.2, <= 2012.2.4CPE matchmatch criteria
cpe:2.3:a:openstack:keystone:*:*:*:*:*:*:*:*
2013.1CPE matchmatch criteria
cpe:2.3:a:openstack:keystone:2013.1:milestone1:*:*:*:*:*:*
2013.1CPE matchmatch criteria
cpe:2.3:a:openstack:keystone:2013.1:milestone2:*:*:*:*:*:*
2013.1CPE matchmatch criteria
cpe:2.3:a:openstack:keystone:2013.1:milestone3:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.07%
Probability of exploitation in next 30 days
EPSS Percentile
86.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0307 is in the 95th percentile among its peer group of 21,974 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

pippatch availablevia ghsa
Product: keystoneFixed in: 8.0.0a0
ubuntupatch availablevia nvd_reference
View patch

Vendor Advisories (1)

pipGHSA-4ppj-4p4v-jf4pmedium

OpenStack Keystone Denial of Service vulnerability via a large HTTP request

May 5, 2022

References

rhn.redhat.com / errata/RHSA-2013-0708.html
Third Party Advisory
access.redhat.com / security/cve/CVE-2013-0270
bugs.launchpad.net / keystone/+bug/1099025
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Third Party Advisory
github.com / openstack/keystone/commit/7691276b869a86c2b75631d5bede9f61e030d9d8
Third Party Advisory
github.com / openstack/keystone/commit/82c87e5638ebaf9f166a9b07a0155291276d6fdc
Third Party Advisory
launchpad.net / keystone/grizzly/2013.1
PatchThird Party Advisory