Arbitrary Argument Injection Affecting ansible-core package, versions [,2.17.6rc1)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-PYTHON-ANSIBLECORE-18233949
- published23 Jul 2026
- disclosed21 Jul 2026
- creditUnknown
Introduced: 21 Jul 2026
NewCVE-2026-16493 (opens in a new tab)How to fix?
Upgrade ansible-core to version 2.17.6rc1 or higher.
Overview
ansible-core is an a radically simple IT automation system. It handles configuration management, application deployment, cloud provisioning, ad-hoc task execution, network automation, and multi-node orchestration. Ansible makes complex changes like zero-downtime rolling updates with load balancers easy.
Affected versions of this package are vulnerable to Arbitrary Argument Injection via the collection install process when handling git sources without proper argument separation. An attacker can execute arbitrary commands by supplying a crafted git source URI containing malicious arguments. This is only exploitable if collections are installed from untrusted or non-HTTPS git sources.
Workaround
This vulnerability can be mitigated by installing collections only from trusted sources such as Ansible Galaxy, Red Hat Automation Hub, or verified internal repositories using HTTPS URLs; carefully inspecting requirements.yml files for suspicious git URIs; ensuring git version 2.12 or later is used; and restricting the GIT_ALLOW_PROTOCOL environment variable to necessary protocols.