Critical Security Update for python-tornado: Addressing Vulnerabilities CVE-2026-31958 and CVE-2026-35536
Summary
RHSA-2026:19189: Red Hat Security Advisory: python-tornado security update. Affects python-tornado versions < 0:6.5.5-1.el9_8. Fixed in 0:6.5.5-1.el9_8. How to fix ↓
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Background
python-tornado is a popular web framework and asynchronous networking library for Python, designed to handle thousands of simultaneous connections. It is widely used for building web applications and services that require long-lived network connections. The library is known for its non-blocking network I/O and is often employed in real-time web applications. However, recent vulnerabilities have been identified that could potentially compromise the security of applications utilizing this package.
Vulnerability Detail
The vulnerabilities identified as CVE-2026-31958 and CVE-2026-35536 in python-tornado could allow an attacker to exploit weaknesses in the framework, leading to unauthorized access or data leakage. These vulnerabilities stem from improper handling of certain requests, which could be leveraged to execute malicious code or disrupt service. The potential ramifications include data integrity issues and unauthorized access to sensitive information, making it critical for users to address these vulnerabilities promptly.
How To Fix
Minimum fixed version
0:6.5.5-1.el9_8
This is the first release that contains the fix.
sudo dnf update python-tornadoTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary measure, users can implement input validation and sanitization in their applications to mitigate the risk of exploitation until the package is updated. Additionally, consider restricting access to vulnerable endpoints while the update is being applied.
Conclusion
The vulnerabilities in python-tornado pose significant risks to applications utilizing this framework. It is essential for developers and system administrators to update to the latest patched version to safeguard their systems. Utilizing tools like Vulert can help in monitoring and managing vulnerabilities effectively.
See every vulnerability recorded for python-tornado →
FAQ
These are identifiers for specific vulnerabilities found in the python-tornado package that could lead to unauthorized access or data leakage.
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The CVSS score for this vulnerability is 5.4, indicating a moderate level of risk.
Implement input validation and restrict access to vulnerable endpoints as a temporary workaround until you can apply the update.
Detailed information can be found in the Red Hat Security Advisory at https://security.access.redhat.com/data/osv/RHSA-2026:19189.json.
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