How severe is CVE-2013-6391?

CVE-2013-6391 has a CVSS 2.0 base score of 5.8, rated medium severity.

Is CVE-2013-6391 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-6391?

CVE-2013-6391 primarily affects Redhat Openstack. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-6391?

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

When was CVE-2013-6391 published?

CVE-2013-6391 was published on 2013-12-14 and last updated on 2026-06-17.

CVE-2013-6391

CVE-2013-6391 is a medium-severity vulnerability in Redhat Openstack with a CVSS 2.0 base score of 5.8. 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-269.

Key facts

Severity: Medium (CVSS 2.0 base score 5.8)
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-269
Affected product: Redhat Openstack
Published: 2013-12-14
Last modified: 2026-06-17

Description

The ec2tokens API in OpenStack Identity (Keystone) before Havana 2013.2.1 and Icehouse before icehouse-2 does not return a trust-scoped token when one is received, which allows remote trust users to gain privileges by generating EC2 credentials from a trust-scoped token and using them in an ec2tokens API request.

Frequently asked questions

What is CVE-2013-6391?: The ec2tokens API in OpenStack Identity (Keystone) before Havana 2013.2.1 and Icehouse before icehouse-2 does not return a trust-scoped token when one is received, which allows remote trust users to gain privileges by generating EC2 credentials from a trust-scoped token and using them in an ec2tokens API request.
How severe is CVE-2013-6391?: CVE-2013-6391 has a CVSS 2.0 base score of 5.8, rated medium severity.
Is CVE-2013-6391 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-6391?: CVE-2013-6391 primarily affects Redhat Openstack. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-6391?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-6391 published?: CVE-2013-6391 was published on 2013-12-14 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:openstack:keystone:*:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:13.10:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openstack:4.0:*:*:*:*:*:*:*

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