Moderate: python-jinja2 security update
Summary
RLSA-2024:3102: Moderate: python-jinja2 security update. Affects python-jinja2 versions < 0:2.10.1-4.el8. Fixed in 0:2.10.1-4.el8. How to fix ↓
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Background
The python-jinja2 package is a template engine written in pure Python. It provides a Django-inspired non-XML syntax and supports inline expressions and a sandboxed environment. The package is widely used in various applications and frameworks for rendering templates.
Vulnerability Detail
The vulnerability identified in python-jinja2 is related to HTML attribute injection when passing user input as keys to the xmlattr filter. This could allow an attacker to inject malicious code into HTML attributes, potentially leading to cross-site scripting (XSS) attacks. The impact of this vulnerability depends on how the affected package is used within an application or framework.
How To Fix
Minimum fixed version
0:2.10.1-4.el8
This is the first release that contains the fix.
sudo dnf update python-jinja2Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no specific workaround mentioned for this vulnerability. However, as a general best practice, it is recommended to sanitize and validate user input before using it as keys to the xmlattr filter in Jinja2 templates. This can help prevent the injection of malicious code into HTML attributes.
Conclusion
The python-jinja2 package is affected by a moderate security vulnerability related to HTML attribute injection. To mitigate this vulnerability, it is crucial to update the package to the recommended version. For further support on vulnerability remediation, you can contact DevNack.com.
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FAQ
Python-jinja2 is a template engine written in pure Python that provides a non-XML syntax for rendering templates. It is widely used in various applications and frameworks.
The vulnerability in python-jinja2 could allow an attacker to inject malicious code into HTML attributes, potentially leading to cross-site scripting (XSS) attacks. The impact depends on how the affected package is used within an application or framework.
To fix this vulnerability, it is recommended to update the python-jinja2 package to version 2.10.1-4.el8 or later. This update includes the necessary security patches to mitigate the HTML attribute injection issue.
There is no specific workaround mentioned for this vulnerability. However, it is recommended to sanitize and validate user input before using it as keys to the xmlattr filter in Jinja2 templates.
More information about this vulnerability, including the CVE identifier, can be found in the CVE page listed in the References section of the vulnerability details.
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