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Not in CISA KEV
HIGH severity

CVE-2014-2828 — keystone

HIGHFix: openstack/keystone@ce6cedb

CVE-2014-2828 is a high-severity (CVSS 7.5) Improper Authentication vulnerability in keystone. A fix is available for keystone — see the affected versions and patch details below.

OpenStack Identity (Keystone) DoS through V3 API authentication chaining

Also known asGHSA-6mv3-p2gr-wgqfPYSEC-2014-106
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 7, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
3.2%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs88th percentile — riskier than 88% of all scored CVEsHighest risk
0.16%1.41%2.67%3.92%0.9%3.2%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
🐍keystone

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.

Description

The V3 API in OpenStack Identity (Keystone) 2013.1 before 2013.2.4 and icehouse before icehouse-rc2 allows remote attackers to cause a denial of service (CPU consumption) via a large number of the same authentication method in a request, aka "authentication chaining."

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐍PyPIkeystoneall versions8.0.0a0pip install --upgrade 'keystone==8.0.0a0'

Affected Products

1 product · 8 configurations
Application
keystoneopenstack
8 versions
2013.12013.1.12013.1.22013.1.32013.22013.2.12013.2.22013.2.3

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for keystone, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update keystone to 8.0.0a0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2014-2828 is resolved across your whole dependency graph.

  3. Workarounds

    Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.

Fixing This On Your OS

If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.

Red HatModerate
ProductFixed inAdvisory
OpenStack 4 for RHEL 6openstack-keystone-0:2013.2.4-1.el6ostRHSA-2014:1688

Frequently Asked Questions

The V3 API in OpenStack Identity (Keystone) 2013.1 before 2013.2.4 and icehouse before icehouse-rc2 allows remote attackers to cause a denial of service (CPU consumption) via a large number of the same authentication method in a request, aka "authentication chaining."
O3 Security · Impact-Aware SCA

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CVE-2014-2828: keystone DoS — Fixed in 8.0.0a0