Critical Security Update for Python3: Addressing CVE-2026-11940 Vulnerability
Summary
RHSA-2026:64806: Red Hat Security Advisory: python3 security update. Affects platform-python versions < 0:3.6.8-51.el8_8.17. Fixed in 0:3.6.8-51.el8_8.17. How to fix ↓
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Background
Python3 is a widely used programming language known for its simplicity and versatility. It supports multiple programming paradigms and is extensively utilized in web development, data analysis, artificial intelligence, and more. The affected package, platform-python, is integral to the Red Hat ecosystem, providing essential Python functionalities. This vulnerability poses a significant risk to applications relying on this package, potentially leading to unauthorized access or data breaches.
Vulnerability Detail
The vulnerability identified as CVE-2026-11940 affects the platform-python package, which is a core component of the Python3 ecosystem in Red Hat. This issue arises from improper handling of certain inputs, allowing attackers to exploit the flaw and execute arbitrary code. The ramifications of this vulnerability are severe, as it could lead to unauthorized access to sensitive data or system compromise. The CVSS score of this vulnerability is 7.3, indicating a high level of risk.
How To Fix
Minimum fixed version
0:3.6.8-51.el8_8.17
This is the first release that contains the fix.
sudo dnf update platform-pythonTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, you can restrict access to the affected services or applications until the update is applied. Additionally, consider implementing network-level security measures to limit exposure to potential attacks.
Conclusion
The CVE-2026-11940 vulnerability in the platform-python package poses a significant risk to systems using Python3 in the Red Hat ecosystem. It is crucial to apply the necessary updates to mitigate this risk and ensure the security of your applications. Regular monitoring and timely updates are essential to safeguard against such vulnerabilities.
See every vulnerability recorded for platform-python →
FAQ
CVE-2026-11940 is a security vulnerability in the platform-python package that allows for arbitrary code execution due to improper input handling.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without requiring any signup.
The CVSS score of this vulnerability is 7.3, indicating a high level of risk.
If immediate updates are not possible, consider implementing network security measures to limit access to the affected services.
More information can be found in the Red Hat Security Advisory and on the official CVE database.
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