Upstream information
Description
Werkzeug is a comprehensive WSGI web application library. Prior to 3.1.9, the safe_join function used by send_from_directory can allow a NUL: special-device path because safe_join checks the Windows device name without first removing an empty NTFS ADS marker. The trigger is that an application runs on Windows with NTFS and serves a user-specified path ending in a special device name such as NUL:. The attack mechanism is that a requested path ends in a Windows special device name with an empty ADS marker. The impact is that the special device opens successfully and the file read hangs indefinitely. This issue is fixed in version 3.1.9.SUSE information
Overall state of this security issue: Pending
This issue is currently rated as having moderate severity.
| CVSS detail | SUSE |
|---|---|
| Base Score | 5.3 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
| Attack Vector | Network |
| Attack Complexity | Low |
| Privileges Required | None |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality Impact | None |
| Integrity Impact | None |
| Availability Impact | Low |
| CVSSv3 Version | 3.1 |
| CVSS detail | CNA (GitHub) | SUSE |
|---|---|---|
| Base Score | 6.3 | 6.3 |
| Vector | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/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 | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N |
| Attack Vector | Network | Network |
| Attack Complexity | Low | Low |
| Attack Requirements | Present | Present |
| Privileges Required | None | None |
| User Interaction | None | None |
| Vulnerable System Confidentiality Impact | None | None |
| Vulnerable System Integrity Impact | None | None |
| Vulnerable System Availability Impact | Low | Low |
| Subsequent System Confidentiality Impact | None | None |
| Subsequent System Integrity Impact | None | None |
| Subsequent System Availability Impact | None | None |
| CVSSv4 Version | 4.0 | 4.0 |
Status of this issue by product and package
Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.
| Product(s) | Source package | State |
|---|---|---|
| Products under general support and receiving all security fixes. | ||
| SUSE Linux Enterprise Desktop 15 SP7 | python-Werkzeug | Affected |
| SUSE Linux Enterprise High Performance Computing 12 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP7 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Module for Python 3 15 SP7 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Server 15 SP7 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Server 16.0 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Server 16.1 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Server for SAP applications 16.0 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Server for SAP applications 16.1 | python-Werkzeug | Affected |
| openSUSE Leap 16.0 | python-Werkzeug | Affected |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | python-Werkzeug | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | python-Werkzeug | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | python-Werkzeug | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP4 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP5 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP6 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Module for Public Cloud 12 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Module for Python 3 15 SP4 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Module for Python 3 15 SP5 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Module for Python 3 15 SP6 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Server 12 SP5 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Server 12 SP5-LTSS | python-Werkzeug | Affected |
| SUSE Linux Enterprise Server 15 SP4 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Server 15 SP4-LTSS | python-Werkzeug | Affected |
| SUSE Linux Enterprise Server 15 SP5 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Server 15 SP5-LTSS | python-Werkzeug | Affected |
| SUSE Linux Enterprise Server 15 SP6 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Server 15 SP6-LTSS | python-Werkzeug | Affected |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | python-Werkzeug | Affected |
| Products past their end of life and not receiving proactive updates anymore. | ||
| SUSE CaaS Platform 4.0 | python-Werkzeug | Affected |
| SUSE Enterprise Storage 6 | python-Werkzeug | Affected |
| SUSE Enterprise Storage 7 | python-Werkzeug | Affected |
| SUSE Enterprise Storage 7.1 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Desktop 15 SP1 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Desktop 15 SP2 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Desktop 15 SP3 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Desktop 15 SP4 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Desktop 15 SP5 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Desktop 15 SP6 | python-Werkzeug | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1 | python-Werkzeug | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | python-Werkzeug | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | python-Werkzeug | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2 | python-Werkzeug | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | python-Werkzeug | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | python-Werkzeug | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3 | python-Werkzeug | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS | python-Werkzeug | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | python-Werkzeug | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4 | python-Werkzeug | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | python-Werkzeug | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | python-Werkzeug | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP1 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP2 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP3 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP1 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP2 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP3 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP4 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP5 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP6 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Real Time 15 SP2 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Real Time 15 SP3 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Real Time 15 SP4 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Server 12 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Server 12 SP3 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Server 12 SP4 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Server 15 SP1 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Server 15 SP1-BCL | python-Werkzeug | Affected |
| SUSE Linux Enterprise Server 15 SP1-LTSS | python-Werkzeug | Affected |
| SUSE Linux Enterprise Server 15 SP2 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Server 15 SP2-BCL | python-Werkzeug | Affected |
| SUSE Linux Enterprise Server 15 SP2-LTSS | python-Werkzeug | Affected |
| SUSE Linux Enterprise Server 15 SP3 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Server 15 SP3-BCL | python-Werkzeug | Affected |
| SUSE Linux Enterprise Server 15 SP3-LTSS | python-Werkzeug | Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP3 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP4 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP1 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | python-Werkzeug | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | python-Werkzeug | Affected |
| SUSE Manager Proxy 4.0 | python-Werkzeug | Affected |
| SUSE Manager Proxy 4.1 | python-Werkzeug | Affected |
| SUSE Manager Proxy 4.2 | python-Werkzeug | Affected |
| SUSE Manager Proxy 4.3 | python-Werkzeug | Affected |
| SUSE Manager Proxy LTS 4.3 | python-Werkzeug | Affected |
| SUSE Manager Retail Branch Server 4.0 | python-Werkzeug | Affected |
| SUSE Manager Retail Branch Server 4.1 | python-Werkzeug | Affected |
| SUSE Manager Retail Branch Server 4.2 | python-Werkzeug | Affected |
| SUSE Manager Retail Branch Server 4.3 | python-Werkzeug | Affected |
| SUSE Manager Retail Branch Server LTS 4.3 | python-Werkzeug | Affected |
| SUSE Manager Server 4.0 | python-Werkzeug | Affected |
| SUSE Manager Server 4.1 | python-Werkzeug | Affected |
| SUSE Manager Server 4.2 | python-Werkzeug | Affected |
| SUSE Manager Server 4.3 | python-Werkzeug | Affected |
| SUSE Manager Server LTS 4.3 | python-Werkzeug | Affected |
| openSUSE Leap 15.3 | python-Werkzeug | Affected |
| openSUSE Leap 15.4 | python-Werkzeug | Affected |
| openSUSE Leap 15.5 | python-Werkzeug | Affected |
| openSUSE Leap 15.6 | python-Werkzeug | Affected |
| Products at an unknown state of their lifecycle. | ||
| 16.1 | python-Werkzeug | Affected |
SUSE Timeline for this CVE
CVE page created: Wed Sep 30 13:02:50 2026CVE page last modified: Wed Sep 30 20:02:14 2026