CVE-2017-2673 is a high-severity (CVSS 7.2) CWE-863 vulnerability in keystone. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. A fix is available for keystone — see the affected versions and patch details below.
OpenStack Identity service (keystone) Incorrect Authorization
EPSS Exploitation Probability
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
keystone🐍keystone🐍keystoneReal-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
An authorization-check flaw was discovered in federation configurations of the OpenStack Identity service (keystone). An authenticated federated user could request permissions to a project and unintentionally be granted all related roles including administrative roles.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐍PyPI | keystone | ≥ 9.0.0 | No fix |
| 🐍PyPI | keystone | ≥ 10.0.0&&< 10.0.2 | 10.0.2pip install --upgrade 'keystone==10.0.2' |
| 🐍PyPI | keystone | ≥ 11.0.0&&< 11.0.1 | 11.0.1pip install --upgrade 'keystone==11.0.1' |
Affected Products
openstackredhatResearch use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
Detection & mitigation playbook
Open-source dependencyDetect
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.
Fix
A fix is available for CVE-2017-2673; check the affected-versions list above or the advisory for the patched release of keystone, then make sure no transitive dependency still pins the vulnerable range.
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.
| Product | Fixed in | Advisory |
|---|---|---|
| Red Hat OpenStack Platform 10.0 (Newton) | openstack-keystone-1:10.0.1-3.el7ost | RHSA-2017:1597 |
| Red Hat OpenStack Platform 9.0 (Mitaka) | openstack-keystone-1:9.3.0-2.el7ost | RHSA-2017:1461 |
Frequently Asked Questions
Is CVE-2017-2673 in your dependencies?
Find it across PyPI, including transitive dependencies.