Moderate Security Update for python-jinja2: Addressing CVE-2024-34064
Summary
RLSA-2024:9150: Moderate: python-jinja2 security update. Affects python-jinja2 versions < 0:2.11.3-6.el9. Fixed in 0:2.11.3-6.el9. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
The python-jinja2 package is a widely used template engine written in pure Python, designed to facilitate the creation of dynamic web pages. It offers a Django-inspired syntax that is non-XML and supports inline expressions, making it a popular choice among developers for rendering templates. However, it has been found to accept keys containing non-attribute characters, which can lead to potential security vulnerabilities.
Vulnerability Detail
The vulnerability identified as CVE-2024-34064 allows the python-jinja2 package to accept keys that contain non-attribute characters. This can lead to unexpected behavior in template rendering, potentially exposing applications to security risks such as injection attacks or data leakage. The issue arises from the way the template engine processes keys, which could allow malicious users to manipulate the rendering process.
How To Fix
Minimum fixed version
0:2.11.3-6.el9
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
As a temporary workaround, you can sanitize the input keys used in your templates to ensure they do not contain non-attribute characters. This can help mitigate the risk until the package is updated. For example, you can implement a validation function that checks keys before they are processed by the template engine.
Conclusion
The python-jinja2 package has a moderate security vulnerability that needs to be addressed promptly. By updating to the latest patched version, you can protect your application from potential risks associated with CVE-2024-34064. Additionally, utilizing tools like Vulert can help you monitor and manage vulnerabilities effectively.
See every vulnerability recorded for python-jinja2 →
FAQ
CVE-2024-34064 is a security vulnerability in the python-jinja2 package that allows the acceptance of keys containing non-attribute characters, potentially leading to security risks.
You can use Vulert, which monitors open-source vulnerabilities in your software. By simply uploading your manifest file like package-lock.json, you can check for vulnerabilities in real-time.
Not addressing this vulnerability could expose your application to security risks such as injection attacks, which may compromise sensitive data or lead to unauthorized access.
Yes, you can sanitize the input keys used in your templates to avoid using non-attribute characters, which can help reduce the risk until the package is updated.
For detailed information about the security issue, including the CVSS score and acknowledgments, refer to the CVE page associated with CVE-2024-34064.
Related vulnerabilities
Recent vulnerabilities recorded for python-jinja2.
