Red Hat Product Errata RHSA-2026:59239 - Security Advisory Issued: 2026-08-25 Updated: 2026-08-25 RHSA-2026:59239 - Security Advisory Overview Updated Packages Synopsis Important: python-pyasn1 security update Type/Severity Security Advisory: Important Red Hat Lightspeed patch analysis Identify and remediate systems affected by this advisory. View affected systems Topic An update for python-pyasn1 is now available for Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Description Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. Security Fix(es): pyasn1: pyasn1: Denial of Service via crafted ASN.1 REAL values (CVE-2026-59886) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Solution For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Affected Products Red Hat Enterprise Linux Server - AUS 9.2 x86_64 Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.2 ppc64le Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.2 x86_64 Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.2 aarch64 Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.2 s390x Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 9.2 x86_64 Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 9.2 aarch64 Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 9.2 ppc64le Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 9.2 s390x Fixes BZ - 2500041 - CVE-2026-59886 pyasn1: pyasn1: Denial of Service via crafted ASN.1 REAL values CVEs CVE-2026-59886 References https://access.redhat.com/security/updates/classification/#important Note: More recent versions of these packages may be available. Click a package name for more details. Red Hat Enterprise Linux Server - AUS 9.2 SRPM python-pyasn1-0.4.8-6.el9_2.2.src.rpm SHA-256: cea8d10f5580bb16674a83d12c579cc312f1bd11fc4f35e1cd8cf4bb34061840 x86_64 python3-pyasn1-0.4.8-6.el9_2.2.noarch.rpm SHA-256: fda1ba397ce27b47e7a8ac94405d6cf3a2ab7b978055f0e7ccd744a2cf159ccc python3-pyasn1-modules-0.4.8-6.el9_2.2.noarch.rpm SHA-256: 55aa8f166f1c7cbf7dd8a9fc4e115359e1cd9d1034a3cef4dfbb986d3940d3d2 Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.2 SRPM python-pyasn1-0.4.8-6.el9_2.2.src.rpm SHA-256: cea8d10f5580bb16674a83d12c579cc312f1bd11fc4f35e1cd8cf4bb34061840 ppc64le python3-pyasn1-0.4.8-6.el9_2.2.noarch.rpm SHA-256: fda1ba397ce27b47e7a8ac94405d6cf3a2ab7b978055f0e7ccd744a2cf159ccc python3-pyasn1-modules-0.4.8-6.el9_2.2.noarch.rpm SHA-256: 55aa8f166f1c7cbf7dd8a9fc4e115359e1cd9d1034a3cef4dfbb986d3940d3d2 Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.2 SRPM python-pyasn1-0.4.8-6.el9_2.2.src.rpm SHA-256: cea8d10f5580bb16674a83d12c579cc312f1bd11fc4f35e1cd8cf4bb34061840 x86_64 python3-pyasn1-0.4.8-6.el9_2.2.noarch.rpm SHA-256: fda1ba397ce27b47e7a8ac94405d6cf3a2ab7b978055f0e7ccd744a2cf159ccc python3-pyasn1-modules-0.4.8-6.el9_2.2.noarch.rpm SHA-256: 55aa8f166f1c7cbf7dd8a9fc4e115359e1cd9d1034a3cef4dfbb986d3940d3d2 Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.2 SRPM python-pyasn1-0.4.8-6.el9_2.2.src.rpm SHA-256: cea8d10f5580bb16674a83d12c579cc312f1bd11fc4f35e1cd8cf4bb34061840 aarch64 python3-pyasn1-0.4.8-6.el9_2.2.noarch.rpm SHA-256: fda1ba397ce27b47e7a8ac94405d6cf3a2ab7b978055f0e7ccd744a2cf159ccc python3-pyasn1-modules-0.4.8-6.el9_2.2.noarch.rpm SHA-256: 55aa8f166f1c7cbf7dd8a9fc4e115359e1cd9d1034a3cef4dfbb986d3940d3d2 Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.2 SRPM python-pyasn1-0.4.8-6.el9_2.2.src.rpm SHA-256: cea8d10f5580bb16674a83d12c579cc312f1bd11fc4f35e1cd8cf4bb34061840 s390x python3-pyasn1-0.4.8-6.el9_2.2.noarch.rpm SHA-256: fda1ba397ce27b47e7a8ac94405d6cf3a2ab7b978055f0e7ccd744a2cf159ccc python3-pyasn1-modules-0.4.8-6.el9_2.2.noarch.rpm SHA-256: 55aa8f166f1c7cbf7dd8a9fc4e115359e1cd9d1034a3cef4dfbb986d3940d3d2 Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 9.2 SRPM python-pyasn1-0.4.8-6.el9_2.2.src.rpm SHA-256: cea8d10f5580bb16674a83d12c579cc312f1bd11fc4f35e1cd8cf4bb34061840 x86_64 python3-pyasn1-0.4.8-6.el9_2.2.noarch.rpm SHA-256: fda1ba397ce27b47e7a8ac94405d6cf3a2ab7b978055f0e7ccd744a2cf159ccc python3-pyasn1-modules-0.4.8-6.el9_2.2.noarch.rpm SHA-256: 55aa8f166f1c7cbf7dd8a9fc4e115359e1cd9d1034a3cef4dfbb986d3940d3d2 Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 9.2 SRPM python-pyasn1-0.4.8-6.el9_2.2.src.rpm SHA-256: cea8d10f5580bb16674a83d12c579cc312f1bd11fc4f35e1cd8cf4bb34061840 aarch64 python3-pyasn1-0.4.8-6.el9_2.2.noarch.rpm SHA-256: fda1ba397ce27b47e7a8ac94405d6cf3a2ab7b978055f0e7ccd744a2cf159ccc python3-pyasn1-modules-0.4.8-6.el9_2.2.noarch.rpm SHA-256: 55aa8f166f1c7cbf7dd8a9fc4e115359e1cd9d1034a3cef4dfbb986d3940d3d2 Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 9.2 SRPM python-pyasn1-0.4.8-6.el9_2.2.src.rpm SHA-256: cea8d10f5580bb16674a83d12c579cc312f1bd11fc4f35e1cd8cf4bb34061840 ppc64le python3-pyasn1-0.4.8-6.el9_2.2.noarch.rpm SHA-256: fda1ba397ce27b47e7a8ac94405d6cf3a2ab7b978055f0e7ccd744a2cf159ccc python3-pyasn1-modules-0.4.8-6.el9_2.2.noarch.rpm SHA-256: 55aa8f166f1c7cbf7dd8a9fc4e115359e1cd9d1034a3cef4dfbb986d3940d3d2 Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 9.2 SRPM python-pyasn1-0.4.8-6.el9_2.2.src.rpm SHA-256: cea8d10f5580bb16674a83d12c579cc312f1bd11fc4f35e1cd8cf4bb34061840 s390x python3-pyasn1-0.4.8-6.el9_2.2.noarch.rpm SHA-256: fda1ba397ce27b47e7a8ac94405d6cf3a2ab7b978055f0e7ccd744a2cf159ccc python3-pyasn1-modules-0.4.8-6.el9_2.2.noarch.rpm SHA-256: 55aa8f166f1c7cbf7dd8a9fc4e115359e1cd9d1034a3cef4dfbb986d3940d3d2 The Red Hat security contact is secalert@redhat.com . More contact details at https://access.redhat.com/security/team/contact/ .