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Fedora 43 python-cryptography Important Buffer Overflow CVE-2026-39892

fedora
Calendar Grey April 14, 2026
Dist Fedora Esm H88
Critical security update for Fedora 43 addressing buffer overflow in python-cryptography library. Fix now available!
Changelog * Wed Apr 8 2026 Jeremy Cline - 46.0.7-1 - Update to 46.0.7 - SECURITY ISSUE: Fixed an issue where non-contiguous buffers could be passed to ...

Summary

cryptography is a package designed to expose cryptographic primitives and

recipes to Python developers.

Update Information:

Changelog * Wed Apr 8 2026 Jeremy Cline - 46.0.7-1 - Update to 46.0.7 - SECURITY ISSUE: Fixed an issue where non-contiguous buffers could be passed to APIs that accept Python buffers, which could lead to buffer overflow. CVE-2026-39892

Topics%20covered

Topics Covered

security advisory fedora update buffer overflow important python-cryptography

Change Log

* Wed Apr 8 2026 Jeremy Cline - 46.0.7-1 - Update to 46.0.7 - SECURITY ISSUE: Fixed an issue where non-contiguous buffers could be passed to APIs that accept Python buffers, which could lead to buffer overflow. CVE-2026-39892

References


[ 1 ] Bug #2456352 - python-cryptography-46.0.7 is available https://bugzilla.redhat.com/show_bug.cgi?id=2456352

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-95233f8a79' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

Severity
important
Lowest
Low
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Critical

Name: python-cryptography
Product: Fedora 43
Version: 46.0.7
Release: 1.fc43
URL: https://cryptography.io/en/latest/
Summary: PyCA's cryptography library

Topics%20covered

Topics Covered

security advisory fedora update buffer overflow important python-cryptography

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