How severe is CVE-2013-4294?

CVE-2013-4294 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2013-4294 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-4294?

CVE-2013-4294 primarily affects Openstack Keystone. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-4294?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2013-4294 published?

CVE-2013-4294 was published on 2013-09-23 and last updated on 2026-06-16.

CVE-2013-4294

CVE-2013-4294 is a medium-severity vulnerability in Openstack Keystone with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-264.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 2% (82nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Openstack Keystone
Published: 2013-09-23
Last modified: 2026-06-16

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.

Frequently asked questions

What is CVE-2013-4294?: 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.
How severe is CVE-2013-4294?: CVE-2013-4294 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2013-4294 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-4294?: CVE-2013-4294 primarily affects Openstack Keystone. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-4294?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-4294 published?: CVE-2013-4294 was published on 2013-09-23 and last updated on 2026-06-16.

References

Affected products (9)

cpe:2.3:a:openstack:keystone:2012.2:*:*:*:*:*:*:*
cpe:2.3:a:openstack:keystone:2012.2.1:*:*:*:*:*:*:*
cpe:2.3:a:openstack:keystone:2012.2.2:*:*:*:*:*:*:*
cpe:2.3:a:openstack:keystone:2012.2.3:*:*:*:*:*:*:*
cpe:2.3:a:openstack:keystone:2012.2.4:*:*:*:*:*:*:*
cpe:2.3:a:openstack:keystone:2013.1:*:*:*:*:*:*:*
cpe:2.3:a:openstack:keystone:2013.1.1:*:*:*:*:*:*:*
cpe:2.3:a:openstack:keystone:2013.1.2:*:*:*:*:*:*:*
cpe:2.3:a:openstack:keystone:2013.1.3:*:*:*:*:*:*:*

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