Critical Security Flaw in ansible-core: Arbitrary Code Execution Risk
Summary
ALSA-2026:66248: Important: ansible-core security update. Affects ansible-core versions < 2.16.3-4.el8_10. Fixed in 2.16.3-4.el8_10. How to fix ↓
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Background
Ansible-core is a powerful, model-driven configuration management tool that facilitates multi-node deployment and remote task execution without requiring additional software on remote nodes. It operates over SSH, allowing users to automate tasks across various systems efficiently. However, a recent security vulnerability has been identified that could allow unauthorized code execution through argument injection during the installation of roles via ansible-galaxy.
Vulnerability Detail
The vulnerability arises from an argument injection flaw in the ansible-galaxy role install command. This flaw can be exploited by an attacker to execute arbitrary code on the system where ansible-core is running. The issue is particularly concerning as it can lead to unauthorized access and control over the affected systems, potentially compromising sensitive data and system integrity.
How To Fix
Minimum fixed version
2.16.3-4.el8_10
This is the first release that contains the fix.
sudo dnf update ansible-coreTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary measure, avoid using the ansible-galaxy role install command until the package has been updated to the fixed version. Additionally, review and sanitize any inputs passed to the command to minimize the risk of exploitation.
Conclusion
The identified vulnerability in ansible-core poses a significant risk due to its potential for arbitrary code execution. It is crucial for users to update their packages to the patched version to ensure system security. Utilizing tools like Vulert can help monitor and manage vulnerabilities effectively.
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FAQ
The vulnerability is an argument injection flaw that can lead to arbitrary code execution.
You can use the Vulert playground at Vulert Scanner to check for vulnerabilities in your application without needing to sign up.
If an immediate update is not possible, refrain from using the vulnerable command and sanitize inputs to reduce risk.
Exploitation of this vulnerability can lead to unauthorized access, control over systems, and compromise of sensitive data.
For more details, refer to the CVE page associated with this vulnerability: CVE-2026-11332.
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