CVE-2026-1299 SUSE CVE security@suse.de SUSE Security Team SUSE CVE-2026-1299 Interim 1 1 2026-03-05T00:19:33Z current 2026-03-05T00:19:33Z 2026-03-05T00:19:33Z cve-database/bin/generate-cvrf-cve.pl 2020-12-27T01:00:00Z CVE-2026-1299 The email module, specifically the "BytesGenerator" class, didn't properly quote newlines for email headers when serializing an email message allowing for header injection when an email is serialized. This is only applicable if using "LiteralHeader" writing headers that don't respect email folding rules, the new behavior will reject the incorrectly folded headers in "BytesGenerator". The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). https://lists.suse.com/pipermail/suse-liberty-linux-updates/2026-February/002475.html E-Mail link for RHSA-2026:2128 https://www.suse.com/support/security/rating/ SUSE Security Ratings Container suse/sl-micro/6.0/base-os-container:2.1.3-6.17 Container suse/sles/16.0/toolbox:16.3-1.26 Image SL-Micro Image SLE-Micro Image SLE-Micro-Azure Image SLE-Micro-BYOS Image SLE-Micro-BYOS-Azure Image SLE-Micro-BYOS-EC2 Image SLE-Micro-BYOS-GCE Image SLE-Micro-EC2 Image SLE-Micro-GCE Image SLES-CHOST-BYOS-Aliyun Image SLES-CHOST-BYOS-Azure Image SLES-CHOST-BYOS-EC2 Image SLES-CHOST-BYOS-GCE Image SLES-CHOST-BYOS-GDC Image SLES-CHOST-BYOS-SAP-CCloud SUSE Liberty Linux 8 SUSE Linux Enterprise Module for Basesystem 15 SP7 SUSE Linux Enterprise Module for Development Tools 15 SP7 SUSE Linux Enterprise Module for Python 3 15 SP7 SUSE Linux Enterprise Module for Public Cloud 15 SP4 SUSE Linux Enterprise 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of SUSE Linux Enterprise Server 15 SP1-LTSS python as a component of SUSE Linux Enterprise Server 15 SP2-LTSS python-curses as a component of SUSE Linux Enterprise Server 15 SP2-LTSS python-gdbm as a component of SUSE Linux Enterprise Server 15 SP2-LTSS python-tk as a component of SUSE Linux Enterprise Server 15 SP2-LTSS python3 as a component of SUSE Linux Enterprise Server 15 SP2-LTSS python3-curses as a component of SUSE Linux Enterprise Server 15 SP2-LTSS python3-dbm as a component of SUSE Linux Enterprise Server 15 SP2-LTSS python3-idle as a component of SUSE Linux Enterprise Server 15 SP2-LTSS python3-tk as a component of SUSE Linux Enterprise Server 15 SP2-LTSS python as a component of SUSE Linux Enterprise Server 15 SP3-LTSS python-tk as a component of SUSE Linux Enterprise Server 15 SP3-LTSS python3 as a component of SUSE Linux Enterprise Server 15 SP3-LTSS python3-curses as a component of SUSE Linux Enterprise Server 15 SP3-LTSS python3-dbm as a component of SUSE Linux 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Enterprise Server 15 SP4-LTSS python310-dbm as a component of SUSE Linux Enterprise Server 15 SP4-LTSS python310-idle as a component of SUSE Linux Enterprise Server 15 SP4-LTSS python310-tk as a component of SUSE Linux Enterprise Server 15 SP4-LTSS python311 as a component of SUSE Linux Enterprise Server 15 SP4-LTSS python311-curses as a component of SUSE Linux Enterprise Server 15 SP4-LTSS python311-dbm as a component of SUSE Linux Enterprise Server 15 SP4-LTSS python311-idle as a component of SUSE Linux Enterprise Server 15 SP4-LTSS python311-tk as a component of SUSE Linux Enterprise Server 15 SP4-LTSS python3 as a component of SUSE Linux Enterprise Server 15 SP5-LTSS python3-curses as a component of SUSE Linux Enterprise Server 15 SP5-LTSS python3-dbm as a component of SUSE Linux Enterprise Server 15 SP5-LTSS python3-idle as a component of SUSE Linux Enterprise Server 15 SP5-LTSS python3-tk as a component of SUSE Linux Enterprise Server 15 SP5-LTSS python311 as a component of SUSE Linux Enterprise Server 15 SP5-LTSS python311-curses as a component of SUSE Linux Enterprise Server 15 SP5-LTSS python311-dbm as a component of SUSE Linux Enterprise Server 15 SP5-LTSS python311-idle as a component of SUSE Linux Enterprise Server 15 SP5-LTSS python311-tk as a component of SUSE Linux Enterprise Server 15 SP5-LTSS python39 as a component of SUSE Linux Enterprise Server 15 SP5-LTSS python39-curses as a component of SUSE Linux Enterprise Server 15 SP5-LTSS python39-dbm as a component of SUSE Linux Enterprise Server 15 SP5-LTSS python3 as a component of SUSE Linux Enterprise Server 15 SP6-LTSS python3-curses as a component of SUSE Linux Enterprise Server 15 SP6-LTSS python3-dbm as a component of SUSE Linux Enterprise Server 15 SP6-LTSS python3-idle as a component of SUSE Linux Enterprise Server 15 SP6-LTSS python3-tk as a component of SUSE Linux Enterprise Server 15 SP6-LTSS python311 as a component of SUSE Linux Enterprise Server 15 SP6-LTSS python311-curses as a component of SUSE Linux Enterprise Server 15 SP6-LTSS python311-dbm as a component of SUSE Linux Enterprise Server 15 SP6-LTSS python311-idle as a component of SUSE Linux Enterprise Server 15 SP6-LTSS python311-tk as a component of SUSE Linux Enterprise Server 15 SP6-LTSS python312 as a component of SUSE Linux Enterprise Server 15 SP6-LTSS python312-curses as a component of SUSE Linux Enterprise Server 15 SP6-LTSS python312-dbm as a component of SUSE Linux Enterprise Server 15 SP6-LTSS python312-idle as a component of SUSE Linux Enterprise Server 15 SP6-LTSS python312-tk as a component of SUSE Linux Enterprise Server 15 SP6-LTSS python313 as a component of SUSE Linux Enterprise Server 16.0 python313-curses as a component of SUSE Linux Enterprise Server 16.0 python313-dbm as a component of SUSE Linux Enterprise Server 16.0 python313-idle as a component of SUSE Linux Enterprise Server 16.0 python313-tk as a component of SUSE Linux Enterprise Server 16.0 python313-x86-64-v3 as a component of SUSE Linux Enterprise Server 16.0 python as a component of SUSE Linux Enterprise Server Teradata 12 SP3 python3 as a component of SUSE Linux Enterprise Server Teradata 12 SP3 python36 as a component of SUSE Linux Enterprise Server Teradata 12 SP3 python3 as a component of SUSE Linux Enterprise Server Teradata 15 SP4 python310 as a component of SUSE Linux Enterprise Server Teradata 15 SP4 python311 as a component of SUSE Linux Enterprise Server Teradata 15 SP4 python3 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP4 python3-curses as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP4 python3-dbm as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP4 python3-idle as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP4 python3-tk as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP4 python310 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP4 python310-curses as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP4 python310-dbm as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP4 python310-idle as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP4 python310-tk as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP4 python311 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP4 python311-curses as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP4 python311-dbm as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP4 python311-idle as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP4 python311-tk as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP4 python3 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP5 python3-curses as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP5 python3-dbm as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP5 python3-idle as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP5 python3-tk as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP5 python311 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP5 python311-curses as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP5 python311-dbm as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP5 python311-idle as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP5 python311-tk as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP5 python39 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP5 python39-curses as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP5 python39-dbm as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP5 python3 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP6 python3-curses as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP6 python3-dbm as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP6 python3-idle as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP6 python3-tk as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP6 python311 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP6 python311-curses as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP6 python311-dbm as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP6 python311-idle as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP6 python311-tk as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP6 python312 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP6 python312-curses as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP6 python312-dbm as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP6 python312-idle as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP6 python312-tk as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP6 python313 as a component of SUSE Linux Enterprise Server for SAP applications 16.0 python313-curses as a component of SUSE Linux Enterprise Server for SAP applications 16.0 python313-dbm as a component of SUSE Linux Enterprise Server for SAP applications 16.0 python313-idle as a component of SUSE Linux Enterprise Server for SAP applications 16.0 python313-tk as a component of SUSE Linux Enterprise Server for SAP applications 16.0 python313-x86-64-v3 as a component of SUSE Linux Enterprise Server for SAP applications 16.0 python311 as a component of SUSE Linux Micro 6.0 python311-curses as a component of SUSE Linux Micro 6.0 python311 as a component of SUSE Linux Micro 6.1 python311-curses as a component of SUSE Linux Micro 6.1 python as a component of openSUSE Leap 15.6 python-32bit as a component of openSUSE Leap 15.6 python-curses as a component of openSUSE Leap 15.6 python-demo as a component of openSUSE Leap 15.6 python-gdbm as a component of openSUSE Leap 15.6 python-idle as a component of openSUSE Leap 15.6 python-tk as a component of openSUSE Leap 15.6 python3 as a component of openSUSE Leap 15.6 python3-32bit as a component of openSUSE Leap 15.6 python3-curses as a component of openSUSE Leap 15.6 python3-dbm as a component of openSUSE Leap 15.6 python3-idle as a component of openSUSE Leap 15.6 python3-tk as a component of openSUSE Leap 15.6 python310 as a component of openSUSE Leap 15.6 python310-32bit as a component of openSUSE Leap 15.6 python310-curses as a component of openSUSE Leap 15.6 python310-dbm as a component of openSUSE Leap 15.6 python310-idle as a component of openSUSE Leap 15.6 python310-tk as a component of openSUSE Leap 15.6 python311 as a component of openSUSE Leap 15.6 python311-32bit as a component of openSUSE Leap 15.6 python311-curses as a component of openSUSE Leap 15.6 python311-dbm as a component of openSUSE Leap 15.6 python311-idle as a component of openSUSE Leap 15.6 python311-tk as a component of openSUSE Leap 15.6 python312 as a component of openSUSE Leap 15.6 python312-32bit as a component of openSUSE Leap 15.6 python312-curses as a component of openSUSE Leap 15.6 python312-dbm as a component of openSUSE Leap 15.6 python312-idle as a component of openSUSE Leap 15.6 python312-tk as a component of openSUSE Leap 15.6 python39 as a component of openSUSE Leap 15.6 python39-32bit as a component of openSUSE Leap 15.6 python39-curses as a component of openSUSE Leap 15.6 python39-dbm as a component of openSUSE Leap 15.6 python39-idle as a component of openSUSE Leap 15.6 python39-tk as a component of openSUSE Leap 15.6 The email module, specifically the "BytesGenerator" class, didn't properly quote newlines for email headers when serializing an email message allowing for header injection when an email is serialized. This is only applicable if using "LiteralHeader" writing headers that don't respect email folding rules, the new behavior will reject the incorrectly folded headers in "BytesGenerator". CVE-2026-1299 Container suse/sl-micro/6.0/base-os-container:2.1.3-6.17:libfreetype6-2.13.3-1.1 Container suse/sles/16.0/toolbox:16.3-1.26:libpython3_13-1_0-3.13.12-160000.1.1 Container suse/sles/16.0/toolbox:16.3-1.26:python313-base-3.13.12-160000.1.1 Image SL-Micro:libfreetype6-2.13.3-1.1 Image SLE-Micro:libfreetype6-2.13.3-1.1 Image SLE-Micro-Azure:libfreetype6-2.13.3-1.1 Image SLE-Micro-BYOS:libfreetype6-2.13.3-1.1 Image SLE-Micro-BYOS-Azure:libfreetype6-2.13.3-1.1 Image SLE-Micro-BYOS-EC2:libfreetype6-2.13.3-1.1 Image SLE-Micro-BYOS-GCE:libfreetype6-2.13.3-1.1 Image SLE-Micro-EC2:libfreetype6-2.13.3-1.1 Image SLE-Micro-GCE:libfreetype6-2.13.3-1.1 Image SLES-CHOST-BYOS-Aliyun:libpython3_13-1_0-3.13.12-160000.1.1 Image SLES-CHOST-BYOS-Aliyun:python313-3.13.12-160000.1.1 Image SLES-CHOST-BYOS-Aliyun:python313-base-3.13.12-160000.1.1 Image SLES-CHOST-BYOS-Aliyun:python313-tk-3.13.12-160000.1.1 Image SLES-CHOST-BYOS-Azure:libpython3_13-1_0-3.13.12-160000.1.1 Image SLES-CHOST-BYOS-Azure:python313-3.13.12-160000.1.1 Image SLES-CHOST-BYOS-Azure:python313-base-3.13.12-160000.1.1 Image SLES-CHOST-BYOS-Azure:python313-tk-3.13.12-160000.1.1 Image SLES-CHOST-BYOS-EC2:libpython3_13-1_0-3.13.12-160000.1.1 Image SLES-CHOST-BYOS-EC2:python313-3.13.12-160000.1.1 Image SLES-CHOST-BYOS-EC2:python313-base-3.13.12-160000.1.1 Image SLES-CHOST-BYOS-EC2:python313-tk-3.13.12-160000.1.1 Image SLES-CHOST-BYOS-GCE:libpython3_13-1_0-3.13.12-160000.1.1 Image SLES-CHOST-BYOS-GCE:python313-3.13.12-160000.1.1 Image SLES-CHOST-BYOS-GCE:python313-base-3.13.12-160000.1.1 Image SLES-CHOST-BYOS-GCE:python313-tk-3.13.12-160000.1.1 Image SLES-CHOST-BYOS-GDC:libpython3_13-1_0-3.13.12-160000.1.1 Image SLES-CHOST-BYOS-GDC:python313-3.13.12-160000.1.1 Image SLES-CHOST-BYOS-GDC:python313-base-3.13.12-160000.1.1 Image SLES-CHOST-BYOS-GDC:python313-tk-3.13.12-160000.1.1 Image SLES-CHOST-BYOS-SAP-CCloud:libpython3_13-1_0-3.13.12-160000.1.1 Image SLES-CHOST-BYOS-SAP-CCloud:python313-3.13.12-160000.1.1 Image SLES-CHOST-BYOS-SAP-CCloud:python313-base-3.13.12-160000.1.1 Image SLES-CHOST-BYOS-SAP-CCloud:python313-tk-3.13.12-160000.1.1 SUSE Liberty Linux 8:platform-python-3.6.8-73.el8_10 SUSE Liberty Linux 8:platform-python-debug-3.6.8-73.el8_10 SUSE Liberty Linux 8:platform-python-devel-3.6.8-73.el8_10 SUSE Liberty Linux 8:python3-idle-3.6.8-73.el8_10 SUSE Liberty Linux 8:python3-libs-3.6.8-73.el8_10 SUSE Liberty Linux 8:python3-test-3.6.8-73.el8_10 SUSE Liberty Linux 8:python3-tkinter-3.6.8-73.el8_10 SUSE Linux Enterprise Module for Python 3 15 SP7:libpython3_13-1_0-3.13.12-150700.4.39.1 SUSE Linux Enterprise Module for Python 3 15 SP7:python313-3.13.12-150700.4.39.1 SUSE Linux Enterprise Module for Python 3 15 SP7:python313-base-3.13.12-150700.4.39.1 SUSE Linux Enterprise Module for Python 3 15 SP7:python313-curses-3.13.12-150700.4.39.1 SUSE Linux Enterprise Module for Python 3 15 SP7:python313-dbm-3.13.12-150700.4.39.1 SUSE Linux Enterprise Module for Python 3 15 SP7:python313-devel-3.13.12-150700.4.39.1 SUSE Linux Enterprise Module for Python 3 15 SP7:python313-idle-3.13.12-150700.4.39.1 SUSE Linux Enterprise Module for Python 3 15 SP7:python313-tk-3.13.12-150700.4.39.1 SUSE Linux Enterprise Module for Python 3 15 SP7:python313-tools-3.13.12-150700.4.39.1 openSUSE Leap 16.0:libpython3_13-1_0-3.13.12-160000.1.1 openSUSE Leap 16.0:libpython3_13-1_0-x86-64-v3-3.13.12-160000.1.1 openSUSE Leap 16.0:libpython3_13t1_0-3.13.12-160000.1.1 openSUSE Leap 16.0:python313-3.13.12-160000.1.1 openSUSE Leap 16.0:python313-base-3.13.12-160000.1.1 openSUSE Leap 16.0:python313-base-x86-64-v3-3.13.12-160000.1.1 openSUSE Leap 16.0:python313-curses-3.13.12-160000.1.1 openSUSE Leap 16.0:python313-dbm-3.13.12-160000.1.1 openSUSE Leap 16.0:python313-devel-3.13.12-160000.1.1 openSUSE Leap 16.0:python313-doc-3.13.12-160000.1.1 openSUSE Leap 16.0:python313-doc-devhelp-3.13.12-160000.1.1 openSUSE Leap 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Tumbleweed:python312-idle-3.12.12-5.1 openSUSE Tumbleweed:python312-tk-3.12.12-5.1 openSUSE Tumbleweed:python312-x86-64-v3-3.12.12-5.1 openSUSE Tumbleweed:python313-3.13.12-1.1 openSUSE Tumbleweed:python313-32bit-3.13.12-1.1 openSUSE Tumbleweed:python313-curses-3.13.12-1.1 openSUSE Tumbleweed:python313-dbm-3.13.12-1.1 openSUSE Tumbleweed:python313-idle-3.13.12-1.1 openSUSE Tumbleweed:python313-tk-3.13.12-1.1 openSUSE Tumbleweed:python313-x86-64-v3-3.13.12-1.1 openSUSE Tumbleweed:python314-3.14.3-1.1 openSUSE Tumbleweed:python314-curses-3.14.3-1.1 openSUSE Tumbleweed:python314-dbm-3.14.3-1.1 openSUSE Tumbleweed:python314-idle-3.14.3-1.1 openSUSE Tumbleweed:python314-tk-3.14.3-1.1 openSUSE Tumbleweed:python314-x86-64-v3-3.14.3-1.1 SUSE Linux Enterprise Server 16.0:libpython3_13-1_0-3.13.12-160000.1.1 SUSE Linux Enterprise Server 16.0:libpython3_13-1_0-x86-64-v3-3.13.12-160000.1.1 SUSE Linux Enterprise Server 16.0:python313-3.13.12-160000.1.1 SUSE Linux Enterprise Server 16.0:python313-base-3.13.12-160000.1.1 SUSE Linux Enterprise Server 16.0:python313-base-x86-64-v3-3.13.12-160000.1.1 SUSE Linux Enterprise Server 16.0:python313-curses-3.13.12-160000.1.1 SUSE Linux Enterprise Server 16.0:python313-dbm-3.13.12-160000.1.1 SUSE Linux Enterprise Server 16.0:python313-devel-3.13.12-160000.1.1 SUSE Linux Enterprise Server 16.0:python313-doc-3.13.12-160000.1.1 SUSE Linux Enterprise Server 16.0:python313-doc-devhelp-3.13.12-160000.1.1 SUSE Linux Enterprise Server 16.0:python313-idle-3.13.12-160000.1.1 SUSE Linux Enterprise Server 16.0:python313-tk-3.13.12-160000.1.1 SUSE Linux Enterprise Server 16.0:python313-tools-3.13.12-160000.1.1 SUSE Linux Enterprise Server 16.0:python313-x86-64-v3-3.13.12-160000.1.1 important 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N