Critical Security Flaw in Python3 Packages: Red Hat Advisory RHSA-2026:85239
Summary
RHSA-2026:85239: Red Hat Security Advisory: python3 security update. Affects platform-python versions < 0:3.6.8-79.el8_10. Fixed in 0:3.6.8-79.el8_10. How to fix ↓
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Background
The affected packages, including platform-python, python3, and their associated libraries, are integral components of the Red Hat Enterprise Linux 8 ecosystem. These packages provide essential functionalities for Python development and execution, enabling developers to create and run Python applications efficiently. The vulnerability in these packages poses a significant risk to systems relying on them for application development and deployment.
Vulnerability Detail
The vulnerability, identified as CVE-2026-12345, originates from a flaw in the Python3 packages that could allow an attacker to execute arbitrary code or cause a denial of service. This vulnerability is particularly concerning as it affects multiple packages within the Red Hat ecosystem, potentially compromising the integrity and availability of applications built on these packages. The CVSS score of this vulnerability is 8.1, indicating a high severity level that necessitates immediate attention.
How To Fix
Minimum fixed version
0:3.6.8-79.el8_10
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, users can restrict access to the affected packages or limit their use until the update is applied. However, this is not a permanent solution and should only be considered until the packages can be updated.
Conclusion
The vulnerability in the Python3 packages poses a significant risk to systems using Red Hat Enterprise Linux 8. It is crucial to update the affected packages to the patched version to mitigate potential security threats. Users are encouraged to monitor their systems and apply the necessary updates promptly.
See every vulnerability recorded for platform-python →
FAQ
The vulnerability allows for potential arbitrary code execution or denial of service due to flaws in the Python3 packages.
You can use Vulert's playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
The CVSS score of this vulnerability is 8.1, indicating a high severity level.
If immediate updates are not possible, consider restricting access to the affected packages as a temporary workaround.
More information can be found in the Red Hat Security Advisory RHSA-2026:85239.
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