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Vulnerability record · CVE-2013-4294 · published 23 September 2013

CVE-2013-4294: Openstack keystone permissions and access controls vulnerability

Openstack · Keystone

The (1) mamcache and (2) KVS token backends in OpenStack Identity (Keystone) Folsom 2012.2.x and Grizzly before 2013.1.4 do not properly compare the PKI token revocation list with PKI tokens, which allow remote attackers to bypass intended access restrictions via a revoked PKI token.

5.0 CVSS 2.0 Medium EPSS 2.7% · top 14.7% CWE-264 · Permissions and access controls
5.0CVSS 2.0 base score
2.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
12References
16 Jun 2026Last modified by NVD

Description

The (1) mamcache and (2) KVS token backends in OpenStack Identity (Keystone) Folsom 2012.2.x and Grizzly before 2013.1.4 do not properly compare the PKI token revocation list with PKI tokens, which allow remote attackers to bypass intended access restrictions via a revoked PKI token.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2013-4294), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.