SUSE-SU-2026:0430-1: important: Security update for python-pyasn1
SLE-SECURITY-UPDATES
null at suse.de
Wed Feb 11 16:31:36 UTC 2026
# Security update for python-pyasn1
Announcement ID: SUSE-SU-2026:0430-1
Release Date: 2026-02-11T08:44:46Z
Rating: important
References:
* bsc#1256902
Cross-References:
* CVE-2026-23490
CVSS scores:
* CVE-2026-23490 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
* CVE-2026-23490 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products:
* Basesystem Module 15-SP7
* SUSE Linux Enterprise Desktop 15 SP7
* SUSE Linux Enterprise High Performance Computing 15 SP4
* SUSE Linux Enterprise High Performance Computing 15 SP5
* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4
* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5
* SUSE Linux Enterprise High Performance Computing LTSS 15 SP4
* SUSE Linux Enterprise High Performance Computing LTSS 15 SP5
* 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 Micro for Rancher 5.2
* SUSE Linux Enterprise Micro for Rancher 5.3
* SUSE Linux Enterprise Micro for Rancher 5.4
* SUSE Linux Enterprise Real Time 15 SP7
* SUSE Linux Enterprise Server 15 SP4
* SUSE Linux Enterprise Server 15 SP4 LTSS
* SUSE Linux Enterprise Server 15 SP5
* SUSE Linux Enterprise Server 15 SP5 LTSS
* SUSE Linux Enterprise Server 15 SP6
* SUSE Linux Enterprise Server 15 SP6 LTSS
* SUSE Linux Enterprise Server 15 SP7
* 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
* SUSE Linux Enterprise Server for SAP Applications 15 SP7
An update that solves one vulnerability can now be installed.
## Description:
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)
## Patch Instructions:
To install this SUSE update use the SUSE recommended installation methods like
YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:
* SUSE Linux Enterprise Micro for Rancher 5.3
zypper in -t patch SUSE-SLE-Micro-5.3-2026-430=1
* SUSE Linux Enterprise Micro 5.3
zypper in -t patch SUSE-SLE-Micro-5.3-2026-430=1
* SUSE Linux Enterprise Micro for Rancher 5.4
zypper in -t patch SUSE-SLE-Micro-5.4-2026-430=1
* SUSE Linux Enterprise Micro 5.4
zypper in -t patch SUSE-SLE-Micro-5.4-2026-430=1
* SUSE Linux Enterprise Micro 5.5
zypper in -t patch SUSE-SLE-Micro-5.5-2026-430=1
* Basesystem Module 15-SP7
zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-430=1
* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4
zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-430=1
* SUSE Linux Enterprise High Performance Computing LTSS 15 SP4
zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-430=1
* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5
zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-430=1
* SUSE Linux Enterprise High Performance Computing LTSS 15 SP5
zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-430=1
* SUSE Linux Enterprise Server 15 SP4 LTSS
zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-430=1
* SUSE Linux Enterprise Server 15 SP5 LTSS
zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-430=1
* SUSE Linux Enterprise Server 15 SP6 LTSS
zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-430=1
* SUSE Linux Enterprise Server for SAP Applications 15 SP4
zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP4-2026-430=1
* SUSE Linux Enterprise Server for SAP Applications 15 SP5
zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2026-430=1
* SUSE Linux Enterprise Server for SAP Applications 15 SP6
zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-430=1
* SUSE Linux Enterprise Micro 5.2
zypper in -t patch SUSE-SUSE-MicroOS-5.2-2026-430=1
* SUSE Linux Enterprise Micro for Rancher 5.2
zypper in -t patch SUSE-SUSE-MicroOS-5.2-2026-430=1
## Package List:
* SUSE Linux Enterprise Micro for Rancher 5.3 (noarch)
* python3-pyasn1-0.4.2-150000.3.13.1
* SUSE Linux Enterprise Micro 5.3 (noarch)
* python3-pyasn1-0.4.2-150000.3.13.1
* SUSE Linux Enterprise Micro for Rancher 5.4 (noarch)
* python3-pyasn1-0.4.2-150000.3.13.1
* SUSE Linux Enterprise Micro 5.4 (noarch)
* python3-pyasn1-0.4.2-150000.3.13.1
* SUSE Linux Enterprise Micro 5.5 (noarch)
* python3-pyasn1-0.4.2-150000.3.13.1
* Basesystem Module 15-SP7 (noarch)
* python3-pyasn1-0.4.2-150000.3.13.1
* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (noarch)
* python3-pyasn1-0.4.2-150000.3.13.1
* SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (noarch)
* python3-pyasn1-0.4.2-150000.3.13.1
* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (noarch)
* python3-pyasn1-0.4.2-150000.3.13.1
* SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (noarch)
* python3-pyasn1-0.4.2-150000.3.13.1
* SUSE Linux Enterprise Server 15 SP4 LTSS (noarch)
* python3-pyasn1-0.4.2-150000.3.13.1
* SUSE Linux Enterprise Server 15 SP5 LTSS (noarch)
* python3-pyasn1-0.4.2-150000.3.13.1
* SUSE Linux Enterprise Server 15 SP6 LTSS (noarch)
* python3-pyasn1-0.4.2-150000.3.13.1
* SUSE Linux Enterprise Server for SAP Applications 15 SP4 (noarch)
* python3-pyasn1-0.4.2-150000.3.13.1
* SUSE Linux Enterprise Server for SAP Applications 15 SP5 (noarch)
* python3-pyasn1-0.4.2-150000.3.13.1
* SUSE Linux Enterprise Server for SAP Applications 15 SP6 (noarch)
* python3-pyasn1-0.4.2-150000.3.13.1
* SUSE Linux Enterprise Micro 5.2 (noarch)
* python3-pyasn1-0.4.2-150000.3.13.1
* SUSE Linux Enterprise Micro for Rancher 5.2 (noarch)
* python3-pyasn1-0.4.2-150000.3.13.1
## References:
* https://www.suse.com/security/cve/CVE-2026-23490.html
* https://bugzilla.suse.com/show_bug.cgi?id=1256902
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