Security update for python-pyasn1 SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2026:0430-1 Final 1 1 2026-02-11T08:43:49Z current 2026-02-11T08:43:49Z 2026-02-11T08:43:49Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for python-pyasn1 This update for python-pyasn1 fixes the following issues: - CVE-2026-23490: Fixed malformed RELATIVE-OID with excessive continuation octets leading to Denial of Service (bsc#1256902) The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). Container suse/manager/4.3/proxy-httpd:latest-2026-430,Container suse/manager/4.3/proxy-tftpd:latest-2026-430,Container suse/sle-micro-rancher/5.2:latest-2026-430,SUSE-2026-430,SUSE-SLE-Micro-5.3-2026-430,SUSE-SLE-Micro-5.4-2026-430,SUSE-SLE-Micro-5.5-2026-430,SUSE-SLE-Module-Basesystem-15-SP7-2026-430,SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-430,SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-430,SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-430,SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-430,SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-430,SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-430,SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-430,SUSE-SLE-Product-SLES_SAP-15-SP4-2026-430,SUSE-SLE-Product-SLES_SAP-15-SP5-2026-430,SUSE-SLE-Product-SLES_SAP-15-SP6-2026-430,SUSE-SUSE-MicroOS-5.2-2026-430 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2026/suse-su-20260430-1/ Link for SUSE-SU-2026:0430-1 https://lists.suse.com/pipermail/sle-security-updates/2026-February/024118.html E-Mail link for SUSE-SU-2026:0430-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1256902 SUSE Bug 1256902 https://www.suse.com/security/cve/CVE-2026-23490/ SUSE CVE CVE-2026-23490 page Container suse/manager/4.3/proxy-httpd:latest Container suse/manager/4.3/proxy-tftpd:latest Container suse/sle-micro-rancher/5.2:latest SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS SUSE Linux Enterprise Micro 5.2 SUSE Linux Enterprise Micro 5.3 SUSE Linux Enterprise Micro 5.4 SUSE Linux Enterprise Micro 5.5 SUSE Linux Enterprise Module for Basesystem 15 SP7 SUSE Linux Enterprise Server 15 SP4-LTSS SUSE Linux Enterprise Server 15 SP5-LTSS SUSE Linux Enterprise Server 15 SP6-LTSS SUSE Linux Enterprise Server for SAP Applications 15 SP4 SUSE Linux Enterprise Server for SAP Applications 15 SP5 SUSE Linux Enterprise Server for SAP Applications 15 SP6 python3-pyasn1-0.4.2-150000.3.13.1 python2-pyasn1-0.4.2-150000.3.13.1 python3-pyasn1-0.4.2-150000.3.13.1 as a component of Container suse/manager/4.3/proxy-httpd:latest python3-pyasn1-0.4.2-150000.3.13.1 as a component of Container suse/manager/4.3/proxy-tftpd:latest python3-pyasn1-0.4.2-150000.3.13.1 as a component of Container suse/sle-micro-rancher/5.2:latest python3-pyasn1-0.4.2-150000.3.13.1 as a component of SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS python3-pyasn1-0.4.2-150000.3.13.1 as a component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS python3-pyasn1-0.4.2-150000.3.13.1 as a component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS python3-pyasn1-0.4.2-150000.3.13.1 as a component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS python3-pyasn1-0.4.2-150000.3.13.1 as a component of SUSE Linux Enterprise Micro 5.2 python3-pyasn1-0.4.2-150000.3.13.1 as a component of SUSE Linux Enterprise Micro 5.3 python3-pyasn1-0.4.2-150000.3.13.1 as a component of SUSE Linux Enterprise Micro 5.4 python3-pyasn1-0.4.2-150000.3.13.1 as a component of SUSE Linux Enterprise Micro 5.5 python3-pyasn1-0.4.2-150000.3.13.1 as a component of SUSE Linux Enterprise Module for Basesystem 15 SP7 python3-pyasn1-0.4.2-150000.3.13.1 as a component of SUSE Linux Enterprise Server 15 SP4-LTSS python3-pyasn1-0.4.2-150000.3.13.1 as a component of SUSE Linux Enterprise Server 15 SP5-LTSS python3-pyasn1-0.4.2-150000.3.13.1 as a component of SUSE Linux Enterprise Server 15 SP6-LTSS python3-pyasn1-0.4.2-150000.3.13.1 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP4 python3-pyasn1-0.4.2-150000.3.13.1 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP5 python3-pyasn1-0.4.2-150000.3.13.1 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP6 pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.2, a Denial-of-Service issue has been found that leads to memory exhaustion from malformed RELATIVE-OID with excessive continuation octets. This vulnerability is fixed in 0.6.2. CVE-2026-23490 Container suse/manager/4.3/proxy-httpd:latest:python3-pyasn1-0.4.2-150000.3.13.1 Container suse/manager/4.3/proxy-tftpd:latest:python3-pyasn1-0.4.2-150000.3.13.1 Container suse/sle-micro-rancher/5.2:latest:python3-pyasn1-0.4.2-150000.3.13.1 SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS:python3-pyasn1-0.4.2-150000.3.13.1 SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:python3-pyasn1-0.4.2-150000.3.13.1 SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS:python3-pyasn1-0.4.2-150000.3.13.1 SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS:python3-pyasn1-0.4.2-150000.3.13.1 SUSE Linux Enterprise Micro 5.2:python3-pyasn1-0.4.2-150000.3.13.1 SUSE Linux Enterprise Micro 5.3:python3-pyasn1-0.4.2-150000.3.13.1 SUSE Linux Enterprise Micro 5.4:python3-pyasn1-0.4.2-150000.3.13.1 SUSE Linux Enterprise Micro 5.5:python3-pyasn1-0.4.2-150000.3.13.1 SUSE Linux Enterprise Module for Basesystem 15 SP7:python3-pyasn1-0.4.2-150000.3.13.1 SUSE Linux Enterprise Server 15 SP4-LTSS:python3-pyasn1-0.4.2-150000.3.13.1 SUSE Linux Enterprise Server 15 SP5-LTSS:python3-pyasn1-0.4.2-150000.3.13.1 SUSE Linux Enterprise Server 15 SP6-LTSS:python3-pyasn1-0.4.2-150000.3.13.1 SUSE Linux Enterprise Server for SAP Applications 15 SP4:python3-pyasn1-0.4.2-150000.3.13.1 SUSE Linux Enterprise Server for SAP Applications 15 SP5:python3-pyasn1-0.4.2-150000.3.13.1 SUSE Linux Enterprise Server for SAP Applications 15 SP6:python3-pyasn1-0.4.2-150000.3.13.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2026/suse-su-20260430-1/ https://www.suse.com/security/cve/CVE-2026-23490.html CVE-2026-23490 https://bugzilla.suse.com/1256902 SUSE Bug 1256902