ESB-2026.3344
PUBLISHED
CVSS 7 HIGH
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AUSCERT External Security Bulletin Redistribution
ESB-2026.3344
Security update for python-pyOpenSSL
8 April 2026
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AUSCERT Security Bulletin Summary
---------------------------------
Product: python-pyOpenSSL
Publisher: SUSE
Operating System: SUSE
Resolution: Patch/Upgrade
CVE Names: CVE-2026-27448 CVE-2026-27459
Original Bulletin:
https://www.suse.com/support/update/announcement/2026/suse-su-20261192-1
Comment: CVSS (Max): 7.0 CVE-2026-27459 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H)
CVSS Source: SUSE
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H
EPSS (Max): 0.0% (11th) CVE-2026-27448 2026-04-07
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Security update for python-pyOpenSSL
Announcement ID: SUSE-SU-2026:1192-1
Release Date: 2026-04-07T08:40:00Z
Rating: important
o bsc#1259804
References: o bsc#1259808
o CVE-2026-27448
Cross-References: o CVE-2026-27459
o 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
o 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
o 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
o 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
CVSS scores: o 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
o 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
o 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
o 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
o openSUSE Leap 15.4
o openSUSE Leap 15.6
o Public Cloud Module 15-SP4
o Python 3 Module 15-SP7
o SUSE Linux Enterprise Desktop 15 SP7
o SUSE Linux Enterprise High Performance Computing 15 SP4
o SUSE Linux Enterprise High Performance Computing 15 SP5
o SUSE Linux Enterprise High Performance Computing ESPOS 15
SP4
o SUSE Linux Enterprise High Performance Computing ESPOS 15
SP5
o SUSE Linux Enterprise High Performance Computing LTSS 15
SP4
Affected o SUSE Linux Enterprise High Performance Computing LTSS 15
Products: SP5
o SUSE Linux Enterprise Server 15 SP4
o SUSE Linux Enterprise Server 15 SP4 LTSS
o SUSE Linux Enterprise Server 15 SP5
o SUSE Linux Enterprise Server 15 SP5 LTSS
o SUSE Linux Enterprise Server 15 SP6
o SUSE Linux Enterprise Server 15 SP6 LTSS
o SUSE Linux Enterprise Server 15 SP7
o SUSE Linux Enterprise Server for SAP Applications 15 SP4
o SUSE Linux Enterprise Server for SAP Applications 15 SP5
o SUSE Linux Enterprise Server for SAP Applications 15 SP6
o SUSE Linux Enterprise Server for SAP Applications 15 SP7
o SUSE Manager Proxy 4.3
o SUSE Manager Retail Branch Server 4.3
o 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:
o CVE-2026-27448: unhandled exception can result in connection not being
cancelled (bsc#1259804).
o 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:
o SUSE Linux Enterprise Server 15 SP4 LTSS
zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-1192=1
o SUSE Linux Enterprise Server 15 SP5 LTSS
zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-1192=1
o SUSE Linux Enterprise Server 15 SP6 LTSS
zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-1192=1
o SUSE Linux Enterprise Server for SAP Applications 15 SP4
zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP4-2026-1192=1
o SUSE Linux Enterprise Server for SAP Applications 15 SP5
zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2026-1192=1
o SUSE Linux Enterprise Server for SAP Applications 15 SP6
zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-1192=1
o openSUSE Leap 15.4
zypper in -t patch SUSE-2026-1192=1
o openSUSE Leap 15.6
zypper in -t patch openSUSE-SLE-15.6-2026-1192=1
o Public Cloud Module 15-SP4
zypper in -t patch SUSE-SLE-Module-Public-Cloud-15-SP4-2026-1192=1
o Python 3 Module 15-SP7
zypper in -t patch SUSE-SLE-Module-Python3-15-SP7-2026-1192=1
o SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4
zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-1192=1
o SUSE Linux Enterprise High Performance Computing LTSS 15 SP4
zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-1192=1
o SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5
zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-1192=1
o 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:
o SUSE Linux Enterprise Server 15 SP4 LTSS (noarch)
python311-pyOpenSSL-23.2.0-150400.3.13.1
o SUSE Linux Enterprise Server 15 SP5 LTSS (noarch)
python311-pyOpenSSL-23.2.0-150400.3.13.1
o SUSE Linux Enterprise Server 15 SP6 LTSS (noarch)
python311-pyOpenSSL-23.2.0-150400.3.13.1
o SUSE Linux Enterprise Server for SAP Applications 15 SP4 (noarch)
python311-pyOpenSSL-23.2.0-150400.3.13.1
o SUSE Linux Enterprise Server for SAP Applications 15 SP5 (noarch)
python311-pyOpenSSL-23.2.0-150400.3.13.1
o SUSE Linux Enterprise Server for SAP Applications 15 SP6 (noarch)
python311-pyOpenSSL-23.2.0-150400.3.13.1
o openSUSE Leap 15.4 (noarch)
python311-pyOpenSSL-23.2.0-150400.3.13.1
o openSUSE Leap 15.6 (noarch)
python311-pyOpenSSL-23.2.0-150400.3.13.1
o Public Cloud Module 15-SP4 (noarch)
python311-pyOpenSSL-23.2.0-150400.3.13.1
o Python 3 Module 15-SP7 (noarch)
python311-pyOpenSSL-23.2.0-150400.3.13.1
o SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (noarch)
python311-pyOpenSSL-23.2.0-150400.3.13.1
o SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (noarch)
python311-pyOpenSSL-23.2.0-150400.3.13.1
o SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (noarch)
python311-pyOpenSSL-23.2.0-150400.3.13.1
o SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (noarch)
python311-pyOpenSSL-23.2.0-150400.3.13.1
References:
o https://www.suse.com/security/cve/CVE-2026-27448.html
o https://www.suse.com/security/cve/CVE-2026-27459.html
o https://bugzilla.suse.com/show_bug.cgi?id=1259804
o https://bugzilla.suse.com/show_bug.cgi?id=1259808
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