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CentOS 8 python-encryption Low Memory Leak Issue 2026-abcde12345f

fedora
Calendar Grey March 27, 2026
Dist Fedora Esm H88
-------------------------------------------------------------------------------- Fedora Update Notif
Update pyOpenSSL to v26.0.0 (security update) Update python-cryptography to v46.0.5 (dependency of pyOpenSSL 26) Update rust-asn1 to 0.22 (dependency of python-cryptography) Update...

Summary

cryptography is a package designed to expose cryptographic primitives and

recipes to Python developers.

Update Information:

Update pyOpenSSL to v26.0.0 (security update) Update python-cryptography to v46.0.5 (dependency of pyOpenSSL 26) Update rust-asn1 to 0.22 (dependency of python-cryptography) Update kryoptic to v1.5 (required for rust-asn1 bump to 0.22) The security status of this update is only for pyOpenSSL.

Topics%20covered

Topics Covered

security advisory fedora buffer overflow pyopenssl python-cryptography dependency update

Change Log

* Tue Feb 10 2026 Jeremy Cline - 46.0.5-1 - Update to v46.0.5 * Thu Jan 22 2026 Jeremy Cline - 46.0.3-1 - Update to v46.0.3 - Removed the deprecated get_attribute_for_oid method on CertificateSigningRequest. Users should use get_attribute_for_oid() instead. - Removed the deprecated CAST5, SEED, IDEA, and Blowfish classes from the cipher module. These are still available in Decrepit cryptography. - In X.509, when performing a PSS signature with a SHA-3 hash, it is now encoded with the official NIST SHA3 OID. - Added support for free-threaded Python 3.14. * Sat Jan 17 2026 Fedora Release Engineering - 45.0.4-6 - Rebuilt for https://fedoraproject.org/wiki/Fedora_44_Mass_Rebuild * Wed Oct 22 2025 Peter Robinson - 45.0.4-5 - Drop pytz test req, only needed for py < 3.9

References


[ 1 ] Bug #2433650 - python-cryptography-46.0.5 is available https://bugzilla.redhat.com/show_bug.cgi?id=2433650 [ 2 ] Bug #2447727 - pyOpenSSL-26.0.0 is available https://bugzilla.redhat.com/show_bug.cgi?id=2447727 [ 3 ] Bug #2448652 - CVE-2026-27459 pyOpenSSL: DTLS cookie callback buffer overflow [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2448652

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-9d5b9f45ec' 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
Medium
High
Critical

Name: python-cryptography
Product: Fedora 43
Version: 46.0.5
Release: 1.fc43
URL: https://cryptography.io/en/latest/
Summary: PyCA's cryptography library

Topics%20covered

Topics Covered

security advisory fedora buffer overflow pyopenssl python-cryptography dependency update

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