Security update for python3

Announcement ID: SUSE-SU-2026:0897-1
Release Date: 2026-03-13T15:26:19Z
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2026-1299 ( SUSE ): 8.3 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N
  • CVE-2026-1299 ( SUSE ): 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
  • CVE-2026-1299 ( 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
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 one vulnerability can now be installed.

Description:

This update for python3 fixes the following issues:

  • CVE-2026-1299: header injection when an email is serialized due to improper newline quoting in BytesGenerator (bsc#1257181).

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-2026-897=1
  • SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-897=1

Package List:

  • SUSE Linux Enterprise Server 12 SP5 LTSS (aarch64 ppc64le s390x x86_64)
    • libpython3_4m1_0-3.4.10-25.175.1
    • python3-tk-3.4.10-25.175.1
    • libpython3_4m1_0-debuginfo-3.4.10-25.175.1
    • python3-base-debugsource-3.4.10-25.175.1
    • python3-debuginfo-3.4.10-25.175.1
    • python3-devel-3.4.10-25.175.1
    • python3-curses-3.4.10-25.175.1
    • python3-base-debuginfo-3.4.10-25.175.1
    • python3-3.4.10-25.175.1
    • python3-base-3.4.10-25.175.1
    • python3-curses-debuginfo-3.4.10-25.175.1
    • python3-debugsource-3.4.10-25.175.1
    • python3-tk-debuginfo-3.4.10-25.175.1
  • SUSE Linux Enterprise Server 12 SP5 LTSS (ppc64le s390x x86_64)
    • python3-devel-debuginfo-3.4.10-25.175.1
  • SUSE Linux Enterprise Server 12 SP5 LTSS (s390x x86_64)
    • libpython3_4m1_0-32bit-3.4.10-25.175.1
    • python3-base-debuginfo-32bit-3.4.10-25.175.1
    • libpython3_4m1_0-debuginfo-32bit-3.4.10-25.175.1
  • SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (x86_64)
    • libpython3_4m1_0-3.4.10-25.175.1
    • libpython3_4m1_0-32bit-3.4.10-25.175.1
    • python3-tk-3.4.10-25.175.1
    • libpython3_4m1_0-debuginfo-3.4.10-25.175.1
    • python3-base-debugsource-3.4.10-25.175.1
    • python3-debuginfo-3.4.10-25.175.1
    • python3-devel-3.4.10-25.175.1
    • python3-base-debuginfo-32bit-3.4.10-25.175.1
    • python3-curses-3.4.10-25.175.1
    • python3-base-debuginfo-3.4.10-25.175.1
    • python3-3.4.10-25.175.1
    • libpython3_4m1_0-debuginfo-32bit-3.4.10-25.175.1
    • python3-base-3.4.10-25.175.1
    • python3-devel-debuginfo-3.4.10-25.175.1
    • python3-curses-debuginfo-3.4.10-25.175.1
    • python3-debugsource-3.4.10-25.175.1
    • python3-tk-debuginfo-3.4.10-25.175.1

References: