Upstream information
Description
Tornado is a Python web framework and asynchronous networking library. Prior to 6.5.8, Tornado parses application/x-www-form-urlencoded request bodies with urllib.parse.parse_qs in tornado/escape.py without passing max_num_fields. RequestHandler._execute in tornado/web.py parses the body before handler dispatch through HTTPServerRequest._parse_body and parse_body_arguments in tornado/httputil.py, so an unauthenticated request body containing millions of separator-delimited fields can synchronously stall the single-threaded event loop and delay every connection. The body is bounded only by max_buffer_size, which defaults to 104857600 bytes. This issue is fixed in version 6.5.8.SUSE information
Overall state of this security issue: Pending
This issue is currently rated as having important severity.
| CVSS detail | CNA (GitHub) | SUSE |
|---|---|---|
| Base Score | 7.5 | 7.5 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| Attack Vector | Network | Network |
| Attack Complexity | Low | Low |
| Privileges Required | None | None |
| User Interaction | None | None |
| Scope | Unchanged | Unchanged |
| Confidentiality Impact | None | None |
| Integrity Impact | None | None |
| Availability Impact | High | High |
| CVSSv3 Version | 3.1 | 3.1 |
List of packages in QA
| Product(s) | Package(s) |
|---|---|
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS |
|
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS |
|
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS |
|
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS |
|
| SUSE Linux Enterprise Module for Python 3 15 SP7 |
|
| SUSE Linux Enterprise Server 15 SP7 |
|
| SUSE Linux Enterprise Desktop 15 SP7 |
|
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 |
|
| SUSE Linux Enterprise Server 15 SP4-LTSS |
|
| SUSE Linux Enterprise Server 15 SP4-LTSS |
|
| SUSE Linux Enterprise Server 15 SP5-LTSS |
|
| SUSE Linux Enterprise Server 15 SP5-LTSS |
|
| SUSE Linux Enterprise Server 15 SP6-LTSS |
|
| SUSE Linux Enterprise Server 15 SP6-LTSS |
|
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 |
|
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 |
|
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 |
|
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Please note that this evaluation state might be work in progress, incomplete or outdated.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-tornado | Affected |
| SUSE Linux Enterprise Desktop 15 SP7 | python-tornado6 | In progress |
| SUSE Linux Enterprise High Performance Computing 12 | python-tornado | Affected |
| SUSE Linux Enterprise Micro 5.3 | python-tornado | Affected |
| SUSE Linux Enterprise Micro 5.4 | python-tornado | Affected |
| SUSE Linux Enterprise Micro 5.5 | python-tornado | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | python-tornado | Affected |
| SUSE Linux Enterprise Module for Python 3 15 SP7 | python-tornado | Affected |
| SUSE Linux Enterprise Module for Python 3 15 SP7 | python-tornado6 | In progress |
| SUSE Linux Enterprise Server 15 SP7 | python-tornado | Affected |
| SUSE Linux Enterprise Server 15 SP7 | python-tornado6 | In progress |
| SUSE Linux Enterprise Server 16.0 | python-tornado | Affected |
| SUSE Linux Enterprise Server 16.0 | python-tornado6 | In progress |
| SUSE Linux Enterprise Server 16.1 | python-tornado | Affected |
| SUSE Linux Enterprise Server 16.1 | python-tornado6 | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | python-tornado | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | python-tornado6 | In progress |
| SUSE Linux Enterprise Server for SAP applications 16.0 | python-tornado | Affected |
| SUSE Linux Enterprise Server for SAP applications 16.0 | python-tornado6 | In progress |
| SUSE Linux Enterprise Server for SAP applications 16.1 | python-tornado | Affected |
| SUSE Linux Enterprise Server for SAP applications 16.1 | python-tornado6 | Not affected |
| SUSE Linux Micro 6.0 | python-tornado | Affected |
| SUSE Linux Micro 6.0 | python-tornado6 | Not affected |
| SUSE Linux Micro 6.1 | python-tornado | Affected |
| SUSE Linux Micro 6.1 | python-tornado6 | Not affected |
| SUSE Linux Micro 6.2 | python-tornado | Affected |
| SUSE Linux Micro 6.2 | python-tornado6 | In progress |
| SUSE Manager Client Tools 12 | python-tornado | Affected |
| SUSE Manager Client Tools 12 | venv-salt-minion | Not affected |
| SUSE Manager Client Tools 15 | venv-salt-minion | Not affected |
| SUSE Manager Client Tools for Debian 12 | venv-salt-minion | Not affected |
| SUSE Manager Client Tools for RHEL, Liberty and Clones 9 | venv-salt-minion | Not affected |
| SUSE Manager Client Tools for RHEL, Liberty and Clones 9-CLIENT-TOOLS | venv-salt-minion | Not affected |
| SUSE Manager Client Tools for SLE 12 | python-tornado | Affected |
| SUSE Manager Client Tools for SLE 12 | venv-salt-minion | Not affected |
| SUSE Manager Client Tools for SLE 15 | venv-salt-minion | Not affected |
| SUSE Manager Client Tools for SLE Micro 5 | venv-salt-minion | Not affected |
| SUSE Manager Client Tools for Ubuntu 2204 | venv-salt-minion | Not affected |
| SUSE Multi-Linux Manager Client Tools for SLE 12 | venv-salt-minion | Not affected |
| SUSE Multi-Linux Manager Client Tools for SLE 15 | venv-salt-minion | Not affected |
| SUSE Multi-Linux Manager Client Tools for SLE Micro 5 | venv-salt-minion | Not affected |
| SUSE Multi-Linux Manager Client Tools for Ubuntu 2204 | venv-salt-minion | Not affected |
| SUSE Multi-Linux Manager Client Tools for Ubuntu 2404 | venv-salt-minion | Not affected |
| openSUSE Leap 16.0 | python-tornado | Affected |
| openSUSE Leap 16.0 | python-tornado6 | Not 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-tornado | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | python-tornado6 | In progress |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | python-tornado | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | python-tornado6 | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | python-tornado | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | python-tornado6 | In progress |
| SUSE Linux Enterprise Module for Basesystem 15 SP4 | python-tornado | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP5 | python-tornado | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP6 | python-tornado | Affected |
| SUSE Linux Enterprise Module for Python 3 15 SP4 | python-tornado6 | Not affected |
| SUSE Linux Enterprise Module for Python 3 15 SP5 | python-tornado6 | Not affected |
| SUSE Linux Enterprise Module for Python 3 15 SP6 | python-tornado6 | Not affected |
| SUSE Linux Enterprise Server 12 SP5 | python-tornado | Affected |
| SUSE Linux Enterprise Server 12 SP5-LTSS | python-tornado | Affected |
| SUSE Linux Enterprise Server 15 SP4 | python-tornado | Affected |
| SUSE Linux Enterprise Server 15 SP4 | python-tornado6 | Not affected |
| SUSE Linux Enterprise Server 15 SP4-LTSS | python-tornado | Affected |
| SUSE Linux Enterprise Server 15 SP4-LTSS | python-tornado6 | In progress |
| SUSE Linux Enterprise Server 15 SP5 | python-tornado | Affected |
| SUSE Linux Enterprise Server 15 SP5 | python-tornado6 | Not affected |
| SUSE Linux Enterprise Server 15 SP5-LTSS | python-tornado | Affected |
| SUSE Linux Enterprise Server 15 SP5-LTSS | python-tornado6 | In progress |
| SUSE Linux Enterprise Server 15 SP6 | python-tornado | Affected |
| SUSE Linux Enterprise Server 15 SP6 | python-tornado6 | Not affected |
| SUSE Linux Enterprise Server 15 SP6-LTSS | python-tornado | Affected |
| SUSE Linux Enterprise Server 15 SP6-LTSS | python-tornado6 | In progress |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | python-tornado | Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | python-tornado | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | python-tornado | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | python-tornado6 | In progress |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | python-tornado | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | python-tornado6 | In progress |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | python-tornado | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | python-tornado6 | In progress |
| SUSE Manager Proxy Module 4.3 | venv-salt-minion | Not affected |
| SUSE Manager Server Module 4.3 | venv-salt-minion | Not affected |
| Products past their end of life and not receiving proactive updates anymore. | ||
| SUSE CaaS Platform 3.0 | python-tornado | Affected |
| SUSE CaaS Platform 4.0 | python-tornado | Affected |
| SUSE Enterprise Storage 3 | python-tornado | Affected |
| SUSE Enterprise Storage 4 | python-tornado | Affected |
| SUSE Enterprise Storage 6 | python-tornado | Affected |
| SUSE Enterprise Storage 7 | python-tornado | Affected |
| SUSE Enterprise Storage 7.1 | python-tornado | Affected |
| SUSE Linux Enterprise Desktop 12 | python-tornado | Affected |
| SUSE Linux Enterprise Desktop 12 SP1 | python-tornado | Affected |
| SUSE Linux Enterprise Desktop 15 | python-tornado | Affected |
| SUSE Linux Enterprise Desktop 15 SP1 | python-tornado | Affected |
| SUSE Linux Enterprise Desktop 15 SP2 | python-tornado | Affected |
| SUSE Linux Enterprise Desktop 15 SP3 | python-tornado | Affected |
| SUSE Linux Enterprise Desktop 15 SP4 | python-tornado | Affected |
| SUSE Linux Enterprise Desktop 15 SP4 | python-tornado6 | Not affected |
| SUSE Linux Enterprise Desktop 15 SP5 | python-tornado | Affected |
| SUSE Linux Enterprise Desktop 15 SP5 | python-tornado6 | Not affected |
| SUSE Linux Enterprise Desktop 15 SP6 | python-tornado | Affected |
| SUSE Linux Enterprise Desktop 15 SP6 | python-tornado6 | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 | python-tornado | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1 | python-tornado | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | python-tornado | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | python-tornado | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2 | python-tornado | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | python-tornado | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | python-tornado | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3 | python-tornado | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS | python-tornado | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | python-tornado | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4 | python-tornado | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4 | python-tornado6 | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | python-tornado | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | python-tornado6 | In progress |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | python-tornado | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | python-tornado6 | In progress |
| SUSE Linux Enterprise High Performance Computing 15-ESPOS | python-tornado | Affected |
| SUSE Linux Enterprise High Performance Computing 15-LTSS | python-tornado | Affected |
| SUSE Linux Enterprise Micro 5.2 | python-tornado | Affected |
| SUSE Linux Enterprise Module for Advanced Systems Management 12 | python-tornado | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 | python-tornado | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP1 | python-tornado | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP2 | python-tornado | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP3 | python-tornado | Affected |
| SUSE Linux Enterprise Module for Python 2 15 SP1 | python-tornado | Affected |
| SUSE Linux Enterprise Module for Python 2 15 SP2 | python-tornado | Affected |
| SUSE Linux Enterprise Module for Python 2 15 SP3 | python-tornado | Affected |
| SUSE Linux Enterprise Point of Sale 12 SP2 | python-tornado | Affected |
| SUSE Linux Enterprise Real Time 15 SP2 | python-tornado | Affected |
| SUSE Linux Enterprise Real Time 15 SP3 | python-tornado | Affected |
| SUSE Linux Enterprise Real Time 15 SP4 | python-tornado | Affected |
| SUSE Linux Enterprise Server 12 | python-tornado | Affected |
| SUSE Linux Enterprise Server 12 SP1 | python-tornado | Affected |
| SUSE Linux Enterprise Server 12 SP3 | python-tornado | Affected |
| SUSE Linux Enterprise Server 12 SP4 | python-tornado | Affected |
| SUSE Linux Enterprise Server 15 | python-tornado | Affected |
| SUSE Linux Enterprise Server 15 SP1 | python-tornado | Affected |
| SUSE Linux Enterprise Server 15 SP1-BCL | python-tornado | Affected |
| SUSE Linux Enterprise Server 15 SP1-LTSS | python-tornado | Affected |
| SUSE Linux Enterprise Server 15 SP2 | python-tornado | Affected |
| SUSE Linux Enterprise Server 15 SP2-BCL | python-tornado | Affected |
| SUSE Linux Enterprise Server 15 SP2-LTSS | python-tornado | Affected |
| SUSE Linux Enterprise Server 15 SP3 | python-tornado | Affected |
| SUSE Linux Enterprise Server 15 SP3-BCL | python-tornado | Affected |
| SUSE Linux Enterprise Server 15 SP3-LTSS | python-tornado | Affected |
| SUSE Linux Enterprise Server 15-LTSS | python-tornado | Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 | python-tornado | Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP1 | python-tornado | Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP3 | python-tornado | Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP4 | python-tornado | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 | python-tornado | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP1 | python-tornado | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | python-tornado | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | python-tornado | Affected |
| SUSE Linux Enterprise Workstation Extension 12 | python-tornado | Affected |
| SUSE Linux Enterprise Workstation Extension 12 SP1 | python-tornado | Affected |
| SUSE Manager Proxy 3.0 | python-tornado | Affected |
| SUSE Manager Proxy 3.1 | python-tornado | Affected |
| SUSE Manager Proxy 3.2 | python-tornado | Affected |
| SUSE Manager Proxy 4.0 | python-tornado | Affected |
| SUSE Manager Proxy 4.1 | python-tornado | Affected |
| SUSE Manager Proxy 4.2 | python-tornado | Affected |
| SUSE Manager Proxy 4.3 | python-tornado | Affected |
| SUSE Manager Proxy 4.3 | python-tornado6 | Not affected |
| SUSE Manager Proxy LTS 4.3 | python-tornado | Affected |
| SUSE Manager Proxy LTS 4.3 | venv-salt-minion | Not affected |
| SUSE Manager Retail Branch Server 4.0 | python-tornado | Affected |
| SUSE Manager Retail Branch Server 4.1 | python-tornado | Affected |
| SUSE Manager Retail Branch Server 4.2 | python-tornado | Affected |
| SUSE Manager Retail Branch Server 4.3 | python-tornado | Affected |
| SUSE Manager Retail Branch Server 4.3 | python-tornado6 | Not affected |
| SUSE Manager Retail Branch Server LTS 4.3 | python-tornado | Affected |
| SUSE Manager Server 3.0 | python-tornado | Affected |
| SUSE Manager Server 3.1 | python-tornado | Affected |
| SUSE Manager Server 3.2 | python-tornado | Affected |
| SUSE Manager Server 4.0 | python-tornado | Affected |
| SUSE Manager Server 4.1 | python-tornado | Affected |
| SUSE Manager Server 4.2 | python-tornado | Affected |
| SUSE Manager Server 4.3 | python-tornado | Affected |
| SUSE Manager Server 4.3 | python-tornado6 | Not affected |
| SUSE Manager Server LTS 4.3 | python-tornado | Affected |
| SUSE Manager Server LTS 4.3 | venv-salt-minion | Not affected |
| openSUSE Leap 15.3 | python-tornado | Affected |
| openSUSE Leap 15.4 | python-tornado | Affected |
| openSUSE Leap 15.4 | python-tornado6 | Not affected |
| openSUSE Leap 15.5 | python-tornado | Affected |
| openSUSE Leap 15.5 | python-tornado6 | Not affected |
| openSUSE Leap 15.6 | python-tornado6 | Not affected |
| openSUSE Leap Micro 5.2 | python-tornado | Affected |
| openSUSE Leap Micro 5.3 | python-tornado | Affected |
| openSUSE Leap Micro 5.4 | python-tornado | Affected |
| openSUSE Leap Micro 5.5 | python-tornado | Affected |
| Products at an unknown state of their lifecycle. | ||
| Products | saltbundlepy-tornado | Not affected |
| Products | venv-salt-minion | Not affected |
| SUSE Manager Client Tools for SL Micro 6 | venv-salt-minion | Not affected |
| SUSE Manager Client Tools for Ubuntu 2404 | venv-salt-minion | Not affected |
| SUSE Manager Debian 12-CLIENT-TOOLS | venv-salt-minion | Not affected |
| SUSE Manager Ubuntu 22.04-CLIENT-TOOLS | venv-salt-minion | Not affected |
| SUSE Manager Ubuntu 24.04-CLIENT-TOOLS | venv-salt-minion | Not affected |
| SUSE Multi Linux Manager Tools EL-8 | venv-salt-minion | Not affected |
| SUSE Multi Linux Manager Tools EL-9 | venv-salt-minion | Not affected |
| SUSE Multi Linux Manager Tools RES-7 | venv-salt-minion | Not affected |
| SUSE Multi Linux Manager Tools SLE-12 | venv-salt-minion | Not affected |
| SUSE Multi Linux Manager Tools SLE-15 | venv-salt-minion | Not affected |
| SUSE Multi Linux Manager Tools SLE-Micro-5 | venv-salt-minion | Not affected |
| SUSE Multi Linux Manager Tools Ubuntu-22.04 | venv-salt-minion | Not affected |
| SUSE Multi Linux Manager Tools Ubuntu-24.04 | venv-salt-minion | Not affected |
| SUSE Multi-Linux Manager Client Tools for SUSE Liberty Linux 7, RHEL and clones | venv-salt-minion | Not affected |
| SUSE Multi-Linux Manager Client Tools for SUSE Liberty Linux 8, RHEL and clones | venv-salt-minion | Not affected |
| SUSE Multi-Linux Manager Client Tools for SUSE Liberty Linux 9, RHEL and clones | venv-salt-minion | Not affected |
SUSE Timeline for this CVE
CVE page created: Tue Sep 1 12:05:51 2026CVE page last modified: Tue Sep 1 20:02:48 2026