Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2013-4294

16
FAUCET Score

CVE-2013-4294 describes a vulnerability in OpenStack Identity (Keystone) Folsom and Grizzly versions, specifically affecting the mamcache and KVS token backends. This flaw allows remote attackers to bypass access restrictions by using revoked PKI tokens due to improper comparison with the revocation list. With a CVSS score of 5.0, this vulnerability is of medium severity, indicating a network-based attack with low complexity that could lead to partial integrity impact. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2012.2CPE matchmatch criteria
cpe:2.3:a:openstack:keystone:2012.2:*:*:*:*:*:*:*
2012.2.1CPE matchmatch criteria
cpe:2.3:a:openstack:keystone:2012.2.1:*:*:*:*:*:*:*
2012.2.2CPE matchmatch criteria
cpe:2.3:a:openstack:keystone:2012.2.2:*:*:*:*:*:*:*
2012.2.3CPE matchmatch criteria
cpe:2.3:a:openstack:keystone:2012.2.3:*:*:*:*:*:*:*
2012.2.4CPE matchmatch criteria
cpe:2.3:a:openstack:keystone:2012.2.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:P/A:N

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.70%
Probability of exploitation in next 30 days
EPSS Percentile
84.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0270 is in the 77th percentile among its peer group of 23,725 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 0.4 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 (3)

pippatch availablevia ghsa
Product: keystoneFixed in: 2013.1.4
redhatpatch availablevia redhat_api
Product: OpenStack 3 for RHEL 6Fixed in: openstack-keystone-0:2013.1.3-2.el6ost
View patch
redhatno patchvia redhat_api
Product: Red Hat OpenStack Platform 4Fixed in: openstack-keystone

Vendor Advisories (2)

pipGHSA-5qpp-v56f-mqfmmedium

OpenStack Identity (Keystone) allows remote attackers to bypass intended access restrictions via revoked PKI token

May 17, 2022
redhatCVE-2013-4294Moderate

OpenStack: Keystone Token revocation failure using Keystone memcache/KVS backends

Sep 11, 2013

References

osvdb.org / 97237
rhn.redhat.com / errata/RHSA-2013-1285.html
bugs.launchpad.net / keystone/+bug/1202952
Vendor Advisory
seclists.org / oss-sec/2013/q3/586
Patch
secunia.com / advisories/54706
ubuntu.com / usn/USN-2002-1