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CVE-2013-2166

32
FAUCET Score

CVE-2013-2166 describes a critical vulnerability in python-keystoneclient versions 0.2.3 to 0.2.5, allowing for a middleware memcache encryption bypass. With a CVSS score of 9.8, this vulnerability is easily exploitable over the network with no user interaction, leading to complete compromise of confidentiality, integrity, and availability. While there is no evidence of active exploitation or public exploit code, the vulnerability has garnered significant community discussion, indicating awareness and potential for future exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
>= 0.2.3, <= 0.2.5CPE matchmatch criteria
cpe:2.3:a:openstack:python-keystoneclient:*:*:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:a:redhat:openstack:3.0:*:*:*:*:*:*:*
19CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:19:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.15%
Probability of exploitation in next 30 days
EPSS Percentile
80.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0215 is in the 69th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

pippatch availablevia ghsa
Product: python-keystoneclientFixed in: 0.3.0
redhatpatch availablevia redhat_api
Product: OpenStack 3 for RHEL 6Fixed in: python-keystoneclient-1:0.2.3-5.el6ost
View patch

Vendor Advisories (2)

pipGHSA-c3xq-cj8f-7829critical

Inadequate Encryption Strength in python-keystoneclient

Oct 12, 2021
redhatCVE-2013-2166Important

python-keystoneclient: middleware memcache encryption and signing bypass

Jun 19, 2013

References

lists.fedoraproject.org / pipermail/package-announce/2013-August/113944.html
Mailing ListRelease NotesThird Party Advisory
rhn.redhat.com / errata/RHSA-2013-0992.html
Third Party Advisory
access.redhat.com / security/cve/cve-2013-2166
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
ExploitIssue TrackingThird Party Advisory
bugzilla.suse.com / show_bug.cgi
Issue TrackingThird Party Advisory
security-tracker.debian.org / tracker/CVE-2013-2166
Third Party Advisory
openwall.com / lists/oss-security/2013/06/19/5
Issue TrackingMailing ListThird Party Advisory
securityfocus.com / bid/60684
Third Party AdvisoryVDB Entry