Security update for python3

Announcement ID:	SUSE-SU-2026:0645-1
Release Date:	2026-02-25T16:29:06Z
Rating:	important
References:	bsc#1257029 bsc#1257031 bsc#1257041 bsc#1257042 bsc#1257044 bsc#1257046
Cross-References:	CVE-2025-11468 CVE-2025-15282 CVE-2025-15366 CVE-2025-15367 CVE-2026-0672 CVE-2026-0865
CVSS scores:	CVE-2025-11468 ( SUSE ): 7.1 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N CVE-2025-11468 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVE-2025-11468 ( NVD ): 5.7 CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/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-2025-15282 ( SUSE ): 5.9 CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2025-15282 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H CVE-2025-15282 ( NVD ): 6.0 CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:L/SA:N/E:X/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-2025-15366 ( SUSE ): 6.0 CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2025-15366 ( SUSE ): 6.7 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:H CVE-2025-15366 ( NVD ): 5.9 CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/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-2025-15367 ( SUSE ): 6.0 CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2025-15367 ( SUSE ): 6.7 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:H CVE-2025-15367 ( NVD ): 5.9 CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/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-2026-0672 ( SUSE ): 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N CVE-2026-0672 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVE-2026-0672 ( NVD ): 6.0 CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/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-2026-0865 ( SUSE ): 5.9 CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2026-0865 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H CVE-2026-0865 ( NVD ): 5.9 CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/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
Affected Products:	SUSE Linux Enterprise High Performance Computing 12 SP5 SUSE Linux Enterprise Server 12 SP5 SUSE Linux Enterprise Server 12 SP5 LTSS SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security SUSE Linux Enterprise Server for SAP Applications 12 SP5

An update that solves six vulnerabilities can now be installed.

Description:

This update for python3 fixes the following issues:

• CVE-2025-11468: header injection when folding a long comment in an email header containing exclusively unfoldable characters (bsc#1257029).
• CVE-2026-0672: HTTP header injection via user-controlled cookie values and parameters when using http.cookies.Morsel (bsc#1257031).
• CVE-2026-0865: user-controlled header containing newlines can allow injecting HTTP headers (bsc#1257042).
• CVE-2025-15366: user-controlled command can allow additional commands injected using newlines (bsc#1257044).
• CVE-2025-15282: user-controlled data URLs parsed may allow injecting headers (bsc#1257046).
• CVE-2025-15367: control characters may allow the injection of additional commands (bsc#1257041).

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 12 SP5 LTSS
  zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-2026-645=1
• SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security
  zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-645=1

Package List:

• SUSE Linux Enterprise Server 12 SP5 LTSS (aarch64 ppc64le s390x x86_64)
  • python3-devel-3.4.10-25.172.1
  • libpython3_4m1_0-debuginfo-3.4.10-25.172.1
  • python3-base-3.4.10-25.172.1
  • python3-base-debugsource-3.4.10-25.172.1
  • python3-debuginfo-3.4.10-25.172.1
  • python3-curses-3.4.10-25.172.1
  • libpython3_4m1_0-3.4.10-25.172.1
  • python3-debugsource-3.4.10-25.172.1
  • python3-base-debuginfo-3.4.10-25.172.1
  • python3-tk-3.4.10-25.172.1
  • python3-tk-debuginfo-3.4.10-25.172.1
  • python3-3.4.10-25.172.1
  • python3-curses-debuginfo-3.4.10-25.172.1
• SUSE Linux Enterprise Server 12 SP5 LTSS (ppc64le s390x x86_64)
  • python3-devel-debuginfo-3.4.10-25.172.1
• SUSE Linux Enterprise Server 12 SP5 LTSS (s390x x86_64)
  • libpython3_4m1_0-32bit-3.4.10-25.172.1
  • python3-base-debuginfo-32bit-3.4.10-25.172.1
  • libpython3_4m1_0-debuginfo-32bit-3.4.10-25.172.1
• SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (x86_64)
  • python3-base-debuginfo-32bit-3.4.10-25.172.1
  • libpython3_4m1_0-debuginfo-3.4.10-25.172.1
  • python3-devel-3.4.10-25.172.1
  • python3-base-3.4.10-25.172.1
  • python3-base-debugsource-3.4.10-25.172.1
  • libpython3_4m1_0-32bit-3.4.10-25.172.1
  • python3-debuginfo-3.4.10-25.172.1
  • python3-curses-3.4.10-25.172.1
  • libpython3_4m1_0-3.4.10-25.172.1
  • python3-debugsource-3.4.10-25.172.1
  • python3-base-debuginfo-3.4.10-25.172.1
  • python3-tk-3.4.10-25.172.1
  • python3-devel-debuginfo-3.4.10-25.172.1
  • python3-tk-debuginfo-3.4.10-25.172.1
  • libpython3_4m1_0-debuginfo-32bit-3.4.10-25.172.1
  • python3-3.4.10-25.172.1
  • python3-curses-debuginfo-3.4.10-25.172.1

References:

• https://www.suse.com/security/cve/CVE-2025-11468.html
• https://www.suse.com/security/cve/CVE-2025-15282.html
• https://www.suse.com/security/cve/CVE-2025-15366.html
• https://www.suse.com/security/cve/CVE-2025-15367.html
• https://www.suse.com/security/cve/CVE-2026-0672.html
• https://www.suse.com/security/cve/CVE-2026-0865.html
• https://bugzilla.suse.com/show_bug.cgi?id=1257029
• https://bugzilla.suse.com/show_bug.cgi?id=1257031
• https://bugzilla.suse.com/show_bug.cgi?id=1257041
• https://bugzilla.suse.com/show_bug.cgi?id=1257042
• https://bugzilla.suse.com/show_bug.cgi?id=1257044
• https://bugzilla.suse.com/show_bug.cgi?id=1257046