CVE-2017-7466 is a high-severity (CVSS 8) Improper Input Validation vulnerability in ansible. A fix is available for ansible — see the affected versions and patch details below.
Ansible Arbitrary Code Execution
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
ansibleReal-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
Ansible before version 2.3 has an input validation vulnerability in the handling of data sent from client systems. An attacker with control over a client system being managed by Ansible, and the ability to send facts back to the Ansible server, could use this flaw to execute arbitrary code on the Ansible server using the Ansible server privileges.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐍PyPI | ansible | all versions | 2.2.3.0pip install --upgrade 'ansible==2.2.3.0' |
Affected Products
ansibleredhatopenstackredhatDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for ansible, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update ansible to 2.2.3.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2017-7466 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
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 Gluster Storage 3.2 for RHEL 7 | ansible-0:2.2.3.0-1.el7 | RHSA-2017:1334 |
| Red Hat OpenShift Container Platform 3.2 | ansible-0:2.2.3.0-1.el7 | RHSA-2017:1244 |
| Red Hat OpenStack Platform 10.0 (Newton) | ansible-0:2.2.3.0-1.el7 | RHSA-2017:1599 |
| Red Hat OpenStack Platform 11.0 (Ocata) | ansible-0:2.2.3.0-1.el7 | RHSA-2017:1476 |
| Red Hat Storage Console 2 for Red Hat Enteprise Linux 7 | ansible-0:2.2.3.0-1.el7 | RHSA-2017:1499 |
| Red Hat Virtualization Engine 4.1 | ansible-0:2.3.0.0-4.el7 | RHSA-2017:1685 |
Frequently Asked Questions
Is CVE-2017-7466 in your dependencies?
Find it across PyPI, including transitive dependencies.