Red Hat Product Errata RHSA-2026:59245 - Security Advisory Issued: 2026-08-25 Updated: 2026-08-25 RHSA-2026:59245 - 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 8.8 Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8 Telecommunications Update Service. 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 for x86_64 - Extended Life Cycle Long Life 8.8 x86_64 Red Hat Enterprise Linux Server - TUS 8.8 x86_64 Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.8 ppc64le Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.8 x86_64 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 for x86_64 - Extended Life Cycle Long Life 8.8 SRPM python-pyasn1-0.3.7-6.el8_8.2.src.rpm SHA-256: 29d97078f1e500cb6a3c595a2e54db79d2b4e95b3044d9fec263efbbf9f8c88e x86_64 python3-pyasn1-0.3.7-6.el8_8.2.noarch.rpm SHA-256: 1d2566ed3f5596f579b2a60508e85109982308f06528776b4b30bf8fe2c9352d python3-pyasn1-modules-0.3.7-6.el8_8.2.noarch.rpm SHA-256: 6b8a0601e14025e3e0c4aaaa7df00ba173709efc342ad007880b66ea5273b1ad Red Hat Enterprise Linux Server - TUS 8.8 SRPM python-pyasn1-0.3.7-6.el8_8.2.src.rpm SHA-256: 29d97078f1e500cb6a3c595a2e54db79d2b4e95b3044d9fec263efbbf9f8c88e x86_64 python3-pyasn1-0.3.7-6.el8_8.2.noarch.rpm SHA-256: 1d2566ed3f5596f579b2a60508e85109982308f06528776b4b30bf8fe2c9352d python3-pyasn1-modules-0.3.7-6.el8_8.2.noarch.rpm SHA-256: 6b8a0601e14025e3e0c4aaaa7df00ba173709efc342ad007880b66ea5273b1ad Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.8 SRPM python-pyasn1-0.3.7-6.el8_8.2.src.rpm SHA-256: 29d97078f1e500cb6a3c595a2e54db79d2b4e95b3044d9fec263efbbf9f8c88e ppc64le python3-pyasn1-0.3.7-6.el8_8.2.noarch.rpm SHA-256: 1d2566ed3f5596f579b2a60508e85109982308f06528776b4b30bf8fe2c9352d python3-pyasn1-modules-0.3.7-6.el8_8.2.noarch.rpm SHA-256: 6b8a0601e14025e3e0c4aaaa7df00ba173709efc342ad007880b66ea5273b1ad Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.8 SRPM python-pyasn1-0.3.7-6.el8_8.2.src.rpm SHA-256: 29d97078f1e500cb6a3c595a2e54db79d2b4e95b3044d9fec263efbbf9f8c88e x86_64 python3-pyasn1-0.3.7-6.el8_8.2.noarch.rpm SHA-256: 1d2566ed3f5596f579b2a60508e85109982308f06528776b4b30bf8fe2c9352d python3-pyasn1-modules-0.3.7-6.el8_8.2.noarch.rpm SHA-256: 6b8a0601e14025e3e0c4aaaa7df00ba173709efc342ad007880b66ea5273b1ad The Red Hat security contact is secalert@redhat.com . More contact details at https://access.redhat.com/security/team/contact/ .