Upstream information
Description
Twisted is an event-based framework for internet applications, supporting Python 3.6+. In 25.5.0 and earlier, wildcardToRegexp() in twisted/mail/imap4.py translates the IMAP asterisk and percent wildcards but passes all other characters from an authenticated client's LIST or LSUB pattern directly to re.compile(), allowing nested or otherwise expensive regular expression constructs to cause catastrophic backtracking when matched against mailbox names. Because Twisted uses a cooperative single-threaded reactor, the blocking match suspends all server input and output for the duration of the match. No fixed release is available as of this review.SUSE information
Overall state of this security issue: Pending
This issue is currently rated as having moderate severity.
| CVSS detail | CNA (GitHub) | SUSE |
|---|---|---|
| Base Score | 4.3 | 4.3 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L |
| Attack Vector | Network | Network |
| Attack Complexity | Low | Low |
| Privileges Required | Low | Low |
| User Interaction | None | None |
| Scope | Unchanged | Unchanged |
| Confidentiality Impact | None | None |
| Integrity Impact | None | None |
| Availability Impact | Low | Low |
| CVSSv3 Version | 3.1 | 3.1 |
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Please note that this evaluation state might be work in progress, incomplete or outdated.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-Twisted | Affected |
| SUSE Linux Enterprise Module for Python 3 15 SP7 | python-Twisted | Affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP7 | python3-Twisted | Affected |
| SUSE Linux Enterprise Server 15 SP7 | python-Twisted | Affected |
| SUSE Linux Enterprise Server 15 SP7 | python3-Twisted | Affected |
| SUSE Linux Enterprise Server 16.0 | python-Twisted | Affected |
| SUSE Linux Enterprise Server 16.1 | python-Twisted | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | python-Twisted | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | python3-Twisted | Affected |
| SUSE Linux Enterprise Server for SAP applications 16.0 | python-Twisted | Affected |
| SUSE Linux Enterprise Server for SAP applications 16.1 | python-Twisted | Affected |
| openSUSE Leap 16.0 | python-Twisted | 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-Twisted | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | python3-Twisted | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | python-Twisted | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | python3-Twisted | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | python-Twisted | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | python3-Twisted | Affected |
| SUSE Linux Enterprise Module for Public Cloud 15 SP4 | python-Twisted | Affected |
| SUSE Linux Enterprise Module for Python 3 15 SP4 | python-Twisted | Affected |
| SUSE Linux Enterprise Module for Python 3 15 SP5 | python-Twisted | Affected |
| SUSE Linux Enterprise Module for Python 3 15 SP6 | python-Twisted | Affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP4 | python3-Twisted | Affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP5 | python3-Twisted | Affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP6 | python3-Twisted | Affected |
| SUSE Linux Enterprise Server 15 SP4 | python-Twisted | Affected |
| SUSE Linux Enterprise Server 15 SP4 | python3-Twisted | Affected |
| SUSE Linux Enterprise Server 15 SP4-LTSS | python-Twisted | Affected |
| SUSE Linux Enterprise Server 15 SP4-LTSS | python3-Twisted | Affected |
| SUSE Linux Enterprise Server 15 SP5 | python-Twisted | Affected |
| SUSE Linux Enterprise Server 15 SP5 | python3-Twisted | Affected |
| SUSE Linux Enterprise Server 15 SP5-LTSS | python-Twisted | Affected |
| SUSE Linux Enterprise Server 15 SP5-LTSS | python3-Twisted | Affected |
| SUSE Linux Enterprise Server 15 SP6 | python-Twisted | Affected |
| SUSE Linux Enterprise Server 15 SP6 | python3-Twisted | Affected |
| SUSE Linux Enterprise Server 15 SP6-LTSS | python-Twisted | Affected |
| SUSE Linux Enterprise Server 15 SP6-LTSS | python3-Twisted | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | python-Twisted | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | python3-Twisted | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | python-Twisted | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | python3-Twisted | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | python-Twisted | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | python3-Twisted | Affected |
| Products past their end of life and not receiving proactive updates anymore. | ||
| SUSE CaaS Platform 4.0 | python-Twisted | Affected |
| SUSE Enterprise Storage 6 | python-Twisted | Affected |
| SUSE Enterprise Storage 7 | python-Twisted | Affected |
| SUSE Enterprise Storage 7.1 | python-Twisted | Affected |
| SUSE Linux Enterprise Desktop 15 SP4 | python-Twisted | Affected |
| SUSE Linux Enterprise Desktop 15 SP5 | python-Twisted | Affected |
| SUSE Linux Enterprise Desktop 15 SP6 | python-Twisted | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1 | python-Twisted | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2 | python-Twisted | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | python-Twisted | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | python-Twisted | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3 | python-Twisted | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS | python-Twisted | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | python-Twisted | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4 | python-Twisted | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4 | python3-Twisted | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | python-Twisted | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | python3-Twisted | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | python-Twisted | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | python3-Twisted | Affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP3 | python-Twisted | Affected |
| SUSE Linux Enterprise Module for Public Cloud 15 SP1 | python-Twisted | Affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP2 | python-Twisted | Affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP3 | python-Twisted | Affected |
| SUSE Linux Enterprise Real Time 15 SP2 | python-Twisted | Affected |
| SUSE Linux Enterprise Real Time 15 SP3 | python-Twisted | Affected |
| SUSE Linux Enterprise Real Time 15 SP4 | python3-Twisted | Affected |
| SUSE Linux Enterprise Server 15 SP1 | python-Twisted | Affected |
| SUSE Linux Enterprise Server 15 SP1-LTSS | python-Twisted | Affected |
| SUSE Linux Enterprise Server 15 SP2 | python-Twisted | Affected |
| SUSE Linux Enterprise Server 15 SP2-BCL | python-Twisted | Affected |
| SUSE Linux Enterprise Server 15 SP2-LTSS | python-Twisted | Affected |
| SUSE Linux Enterprise Server 15 SP3 | python-Twisted | Affected |
| SUSE Linux Enterprise Server 15 SP3-BCL | python-Twisted | Affected |
| SUSE Linux Enterprise Server 15 SP3-LTSS | python-Twisted | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP1 | python-Twisted | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | python-Twisted | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | python-Twisted | Affected |
| SUSE Manager Proxy 4.0 | python-Twisted | Affected |
| SUSE Manager Proxy 4.1 | python-Twisted | Affected |
| SUSE Manager Proxy 4.2 | python-Twisted | Affected |
| SUSE Manager Proxy 4.3 | python-Twisted | Affected |
| SUSE Manager Proxy 4.3 | python3-Twisted | Affected |
| SUSE Manager Proxy LTS 4.3 | python3-Twisted | Affected |
| SUSE Manager Retail Branch Server 4.0 | python-Twisted | Affected |
| SUSE Manager Retail Branch Server 4.1 | python-Twisted | Affected |
| SUSE Manager Retail Branch Server 4.2 | python-Twisted | Affected |
| SUSE Manager Retail Branch Server 4.3 | python-Twisted | Affected |
| SUSE Manager Retail Branch Server 4.3 | python3-Twisted | Affected |
| SUSE Manager Retail Branch Server LTS 4.3 | python3-Twisted | Affected |
| SUSE Manager Server 4.0 | python-Twisted | Affected |
| SUSE Manager Server 4.1 | python-Twisted | Affected |
| SUSE Manager Server 4.2 | python-Twisted | Affected |
| SUSE Manager Server 4.3 | python-Twisted | Affected |
| SUSE Manager Server 4.3 | python3-Twisted | Affected |
| SUSE Manager Server LTS 4.3 | python3-Twisted | Affected |
| openSUSE Leap 15.3 | python-Twisted | Affected |
| openSUSE Leap 15.4 | python-Twisted | Affected |
| openSUSE Leap 15.4 | python3-Twisted | Affected |
| openSUSE Leap 15.5 | python-Twisted | Affected |
| openSUSE Leap 15.5 | python3-Twisted | Affected |
| openSUSE Leap 15.6 | python-Twisted | Affected |
| Products at an unknown state of their lifecycle. | ||
| SUSE Linux Enterprise Server for NVIDIA 16.1 | python-Twisted | Affected |
SUSE Timeline for this CVE
CVE page created: Wed Oct 7 14:14:01 2026CVE page last modified: Thu Oct 8 12:10:08 2026