CVE-2026-21860 SUSE CVE security@suse.de SUSE Security Team SUSE CVE-2026-21860 Interim 1 1 2026-03-05T00:18:37Z current 2026-03-05T00:18:37Z 2026-03-05T00:18:37Z cve-database/bin/generate-cvrf-cve.pl 2020-12-27T01:00:00Z CVE-2026-21860 Werkzeug is a comprehensive WSGI web application library. Prior to version 3.1.5, Werkzeug's safe_join function allows path segments with Windows device names that have file extensions or trailing spaces. On Windows, there are special device names such as CON, AUX, etc that are implicitly present and readable in every directory. Windows still accepts them with any file extension, such as CON.txt, or trailing spaces such as CON. This issue has been patched in version 3.1.5. The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). https://www.suse.com/support/security/rating/ SUSE Security Ratings SUSE Linux Enterprise Module for Basesystem 15 SP6 SUSE Linux Enterprise Module for Basesystem 15 SP7 SUSE Linux Enterprise Module for Python 3 15 SP7 SUSE Linux Enterprise Module for Public Cloud 12 SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS SUSE Linux Enterprise Module for Basesystem 15 SP6 SUSE Linux Enterprise Module for Basesystem 15 SP7 SUSE Linux Enterprise Module for Python 3 15 SP7 SUSE Linux Enterprise Module for Package Hub 15 SP7 SUSE Linux Enterprise Module for Public Cloud 12 SUSE Linux Enterprise Module for Public Cloud 12 SUSE Linux Enterprise Module for Public Cloud 12 SUSE Linux Enterprise Module for Public Cloud 12 SUSE Linux Enterprise Server 15 SP1-LTSS SUSE Linux Enterprise Server 15 SP2-LTSS SUSE Linux Enterprise Server 15 SP3-LTSS SUSE Linux Enterprise Server 15 SP4-LTSS SUSE Linux Enterprise Server 15 SP5-LTSS SUSE Linux Enterprise Module for Basesystem 15 SP6 SUSE Linux Enterprise Server 15 SP6-LTSS SUSE Linux Enterprise Module for Basesystem 15 SP7 SUSE Linux Enterprise Module for Python 3 15 SP7 SUSE Linux Enterprise Server 16.0 SUSE Linux Enterprise Server Teradata 15 SP4 SUSE Linux Enterprise Module for Public Cloud 12 SUSE Linux Enterprise Module for Public Cloud 12 SUSE Linux Enterprise Module for Public Cloud 12 SUSE Linux Enterprise Module for Public Cloud 12 SUSE Linux Enterprise Server for SAP Applications 15 SP4 SUSE Linux Enterprise Server for SAP Applications 15 SP5 SUSE Linux Enterprise Module for Basesystem 15 SP6 SUSE Linux Enterprise Server for SAP Applications 15 SP6 SUSE Linux Enterprise Module for Basesystem 15 SP7 SUSE Linux Enterprise Module for Python 3 15 SP7 SUSE Linux Enterprise Server for SAP applications 16.0 python-Werkzeug python2-Werkzeug python3-Werkzeug python311-Werkzeug python313-Werkzeug python3-Werkzeug as a component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS python311-Werkzeug as a component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS python-Werkzeug as a component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS python3-Werkzeug as a component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS python311-Werkzeug as a component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS python-Werkzeug as a component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS python3-Werkzeug as a component of SUSE Linux Enterprise Module for Basesystem 15 SP6 python-Werkzeug as a component of SUSE Linux Enterprise Module for Basesystem 15 SP6 python3-Werkzeug as a component of SUSE Linux Enterprise Module for Basesystem 15 SP7 python-Werkzeug as a component of SUSE Linux Enterprise Module for Basesystem 15 SP7 python2-Werkzeug as a component of SUSE Linux Enterprise Module for Package Hub 15 SP7 python-Werkzeug as a component of SUSE Linux Enterprise Module for Package Hub 15 SP7 python-Werkzeug as a component of SUSE Linux Enterprise Module for Public Cloud 12 python3-Werkzeug as a component of SUSE Linux Enterprise Module for Public Cloud 12 python311-Werkzeug as a component of SUSE Linux Enterprise Module for Python 3 15 SP7 python-Werkzeug as a component of SUSE Linux Enterprise Module for Python 3 15 SP7 python3-Werkzeug as a component of SUSE Linux Enterprise Server 15 SP1-LTSS python-Werkzeug as a component of SUSE Linux Enterprise Server 15 SP1-LTSS python3-Werkzeug as a component of SUSE Linux Enterprise Server 15 SP2-LTSS python-Werkzeug as a component of SUSE Linux Enterprise Server 15 SP2-LTSS python3-Werkzeug as a component of SUSE Linux Enterprise Server 15 SP3-LTSS python-Werkzeug as a component of SUSE Linux Enterprise Server 15 SP3-LTSS python3-Werkzeug as a component of SUSE Linux Enterprise Server 15 SP4-LTSS python311-Werkzeug as a component of SUSE Linux Enterprise Server 15 SP4-LTSS python-Werkzeug as a component of SUSE Linux Enterprise Server 15 SP4-LTSS python3-Werkzeug as a component of SUSE Linux Enterprise Server 15 SP5-LTSS python311-Werkzeug as a component of SUSE Linux Enterprise Server 15 SP5-LTSS python-Werkzeug as a component of SUSE Linux Enterprise Server 15 SP5-LTSS python3-Werkzeug as a component of SUSE Linux Enterprise Server 15 SP6-LTSS python311-Werkzeug as a component of SUSE Linux Enterprise Server 15 SP6-LTSS python-Werkzeug as a component of SUSE Linux Enterprise Server 15 SP6-LTSS python313-Werkzeug as a component of SUSE Linux Enterprise Server 16.0 python-Werkzeug as a component of SUSE Linux Enterprise Server 16.0 python-Werkzeug as a component of SUSE Linux Enterprise Server Teradata 15 SP4 python3-Werkzeug as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP4 python311-Werkzeug as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP4 python-Werkzeug as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP4 python3-Werkzeug as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP5 python311-Werkzeug as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP5 python-Werkzeug as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP5 python3-Werkzeug as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP6 python311-Werkzeug as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP6 python-Werkzeug as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP6 python313-Werkzeug as a component of SUSE Linux Enterprise Server for SAP applications 16.0 python-Werkzeug as a component of SUSE Linux Enterprise Server for SAP applications 16.0 Werkzeug is a comprehensive WSGI web application library. Prior to version 3.1.5, Werkzeug's safe_join function allows path segments with Windows device names that have file extensions or trailing spaces. On Windows, there are special device names such as CON, AUX, etc that are implicitly present and readable in every directory. Windows still accepts them with any file extension, such as CON.txt, or trailing spaces such as CON. This issue has been patched in version 3.1.5. CVE-2026-21860 SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:python-Werkzeug SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:python3-Werkzeug SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:python311-Werkzeug SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS:python-Werkzeug SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS:python3-Werkzeug SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS:python311-Werkzeug SUSE Linux Enterprise Module for Basesystem 15 SP6:python-Werkzeug SUSE Linux Enterprise Module for Basesystem 15 SP6:python3-Werkzeug SUSE Linux Enterprise Module for Basesystem 15 SP7:python-Werkzeug SUSE Linux Enterprise Module for Basesystem 15 SP7:python3-Werkzeug SUSE Linux Enterprise Module for Package Hub 15 SP7:python-Werkzeug SUSE Linux Enterprise Module for Package Hub 15 SP7:python2-Werkzeug SUSE Linux Enterprise Module for Public Cloud 12:python-Werkzeug SUSE Linux Enterprise Module for Public Cloud 12:python3-Werkzeug SUSE Linux Enterprise Module for Python 3 15 SP7:python-Werkzeug SUSE Linux Enterprise Module for Python 3 15 SP7:python311-Werkzeug SUSE Linux Enterprise Server 15 SP1-LTSS:python-Werkzeug SUSE Linux Enterprise Server 15 SP1-LTSS:python3-Werkzeug SUSE Linux Enterprise Server 15 SP2-LTSS:python-Werkzeug SUSE Linux Enterprise Server 15 SP2-LTSS:python3-Werkzeug SUSE Linux Enterprise Server 15 SP3-LTSS:python-Werkzeug SUSE Linux Enterprise Server 15 SP3-LTSS:python3-Werkzeug SUSE Linux Enterprise Server 15 SP4-LTSS:python-Werkzeug SUSE Linux Enterprise Server 15 SP4-LTSS:python3-Werkzeug SUSE Linux Enterprise Server 15 SP4-LTSS:python311-Werkzeug SUSE Linux Enterprise Server 15 SP5-LTSS:python-Werkzeug SUSE Linux Enterprise Server 15 SP5-LTSS:python3-Werkzeug SUSE Linux Enterprise Server 15 SP5-LTSS:python311-Werkzeug SUSE Linux Enterprise Server 15 SP6-LTSS:python-Werkzeug SUSE Linux Enterprise Server 15 SP6-LTSS:python3-Werkzeug SUSE Linux Enterprise Server 15 SP6-LTSS:python311-Werkzeug SUSE Linux Enterprise Server 16.0:python-Werkzeug SUSE Linux Enterprise Server 16.0:python313-Werkzeug SUSE Linux Enterprise Server Teradata 15 SP4:python-Werkzeug SUSE Linux Enterprise Server for SAP Applications 15 SP4:python-Werkzeug SUSE Linux Enterprise Server for SAP Applications 15 SP4:python3-Werkzeug SUSE Linux Enterprise Server for SAP Applications 15 SP4:python311-Werkzeug SUSE Linux Enterprise Server for SAP Applications 15 SP5:python-Werkzeug SUSE Linux Enterprise Server for SAP Applications 15 SP5:python3-Werkzeug SUSE Linux Enterprise Server for SAP Applications 15 SP5:python311-Werkzeug SUSE Linux Enterprise Server for SAP Applications 15 SP6:python-Werkzeug SUSE Linux Enterprise Server for SAP Applications 15 SP6:python3-Werkzeug SUSE Linux Enterprise Server for SAP Applications 15 SP6:python311-Werkzeug SUSE Linux Enterprise Server for SAP applications 16.0:python-Werkzeug SUSE Linux Enterprise Server for SAP applications 16.0:python313-Werkzeug moderate 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L