Security update for python-pyOpenSSL

Announcement ID:	SUSE-SU-2026:1192-1
Release Date:	2026-04-07T08:40:00Z
Rating:	important
References:	bsc#1259804 bsc#1259808
Cross-References:	CVE-2026-27448 CVE-2026-27459
CVSS scores:	CVE-2026-27448 ( SUSE ): 6.3 CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N CVE-2026-27448 ( SUSE ): 3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N CVE-2026-27448 ( NVD ): 1.7 CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVE-2026-27448 ( NVD ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVE-2026-27459 ( SUSE ): 8.3 CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N CVE-2026-27459 ( SUSE ): 7.0 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H CVE-2026-27459 ( NVD ): 7.2 CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVE-2026-27459 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products:	openSUSE Leap 15.4 openSUSE Leap 15.6 Public Cloud Module 15-SP4 Python 3 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 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 SUSE Manager Proxy 4.3 SUSE Manager Retail Branch Server 4.3 SUSE Manager Server 4.3

An update that solves two vulnerabilities can now be installed.

Description:

This update for python-pyOpenSSL fixes the following issues:

• CVE-2026-27448: unhandled exception can result in connection not being cancelled (bsc#1259804).
• CVE-2026-27459: large cookie value can lead to a buffer overflow (bsc#1259808).

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 Server 15 SP4 LTSS
  zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-1192=1
• SUSE Linux Enterprise Server 15 SP5 LTSS
  zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-1192=1
• SUSE Linux Enterprise Server 15 SP6 LTSS
  zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-1192=1
• SUSE Linux Enterprise Server for SAP Applications 15 SP4
  zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP4-2026-1192=1
• SUSE Linux Enterprise Server for SAP Applications 15 SP5
  zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2026-1192=1
• SUSE Linux Enterprise Server for SAP Applications 15 SP6
  zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-1192=1
• openSUSE Leap 15.4
  zypper in -t patch SUSE-2026-1192=1
• openSUSE Leap 15.6
  zypper in -t patch openSUSE-SLE-15.6-2026-1192=1
• Public Cloud Module 15-SP4
  zypper in -t patch SUSE-SLE-Module-Public-Cloud-15-SP4-2026-1192=1
• Python 3 Module 15-SP7
  zypper in -t patch SUSE-SLE-Module-Python3-15-SP7-2026-1192=1
• SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4
  zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-1192=1
• SUSE Linux Enterprise High Performance Computing LTSS 15 SP4
  zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-1192=1
• SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5
  zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-1192=1
• SUSE Linux Enterprise High Performance Computing LTSS 15 SP5
  zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-1192=1

Package List:

• SUSE Linux Enterprise Server 15 SP4 LTSS (noarch)
  • python311-pyOpenSSL-23.2.0-150400.3.13.1
• SUSE Linux Enterprise Server 15 SP5 LTSS (noarch)
  • python311-pyOpenSSL-23.2.0-150400.3.13.1
• SUSE Linux Enterprise Server 15 SP6 LTSS (noarch)
  • python311-pyOpenSSL-23.2.0-150400.3.13.1
• SUSE Linux Enterprise Server for SAP Applications 15 SP4 (noarch)
  • python311-pyOpenSSL-23.2.0-150400.3.13.1
• SUSE Linux Enterprise Server for SAP Applications 15 SP5 (noarch)
  • python311-pyOpenSSL-23.2.0-150400.3.13.1
• SUSE Linux Enterprise Server for SAP Applications 15 SP6 (noarch)
  • python311-pyOpenSSL-23.2.0-150400.3.13.1
• openSUSE Leap 15.4 (noarch)
  • python311-pyOpenSSL-23.2.0-150400.3.13.1
• openSUSE Leap 15.6 (noarch)
  • python311-pyOpenSSL-23.2.0-150400.3.13.1
• Public Cloud Module 15-SP4 (noarch)
  • python311-pyOpenSSL-23.2.0-150400.3.13.1
• Python 3 Module 15-SP7 (noarch)
  • python311-pyOpenSSL-23.2.0-150400.3.13.1
• SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (noarch)
  • python311-pyOpenSSL-23.2.0-150400.3.13.1
• SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (noarch)
  • python311-pyOpenSSL-23.2.0-150400.3.13.1
• SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (noarch)
  • python311-pyOpenSSL-23.2.0-150400.3.13.1
• SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (noarch)
  • python311-pyOpenSSL-23.2.0-150400.3.13.1

References:

• https://www.suse.com/security/cve/CVE-2026-27448.html
• https://www.suse.com/security/cve/CVE-2026-27459.html
• https://bugzilla.suse.com/show_bug.cgi?id=1259804
• https://bugzilla.suse.com/show_bug.cgi?id=1259808