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openSUSE Security Advisory 2026-2219-1 python-Twisted DoS Vulnerability

opensuse
Calendar Grey June 2, 2026
Dist Opensuse Esm H88
A security advisory for openSUSE addressing an important DoS issue in python-Twisted can be installed now.
An update that solves one vulnerability can now be installed.

Description

This update for python-Twisted fixes the following issue

* CVE-2026-42304: Prior to 26.4.0rc2, the twisted.names module is vulnerable

to a Denial of Service (DoS) attack via resource exhaustion during DNS name

decompression (bsc#1265265).

Topics%20covered

Topics Covered

security advisory denial of service important OpenSUSE python-Twisted CVE-2026-42304

Patch

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like

YaST online_update or "zypper patch".

Alternatively you can run the command listed for your product:

* openSUSE Leap 15.4

zypper in -t patch SUSE-2026-2219=1

* Public Cloud Module 15-SP4

zypper in -t patch SUSE-SLE-Module-Public-Cloud-15-SP4-2026-2219=1

* SUSE Linux Enterprise Server 15 SP5 LTSS

zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-2219=1

* Python 3 Module 15-SP7

zypper in -t patch SUSE-SLE-Module-Python3-15-SP7-2026-2219=1

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5

zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-2219=1

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP5

zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-2219=1

* SUSE Linux Enterprise Server 15 SP6 LTSS

zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-2219=1

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4

zypper in -t patch...

Read the Full Advisory

Package List

* openSUSE Leap 15.4 (noarch)

* python311-Twisted-contextvars-22.10.0-150400.5.26.1

* python311-Twisted-conch_nacl-22.10.0-150400.5.26.1

* python311-Twisted-all_non_platform-22.10.0-150400.5.26.1

* python311-Twisted-serial-22.10.0-150400.5.26.1

* python311-Twisted-tls-22.10.0-150400.5.26.1

* python311-Twisted-conch-22.10.0-150400.5.26.1

* python311-Twisted-http2-22.10.0-150400.5.26.1

* python311-Twisted-22.10.0-150400.5.26.1

* Public Cloud Module 15-SP4 (noarch)

* python311-Twisted-22.10.0-150400.5.26.1

* python311-Twisted-tls-22.10.0-150400.5.26.1

* SUSE Linux Enterprise Server 15 SP5 LTSS (noarch)

* python311-Twisted-contextvars-22.10.0-150400.5.26.1

* python311-Twisted-conch_nacl-22.10.0-150400.5.26.1

* python311-Twisted-all_non_platform-22.10.0-150400.5.26.1

* python311-Twisted-tls-22.10.0-150400.5.26.1

* python311-Twisted-serial-22.10.0-150400.5.26.1

* python311-Twisted-conch-22.10.0-150400.5.26.1

* python311-Twisted-http2-22.10.0-150400.5.26.1

* python311-Twisted-22.10.0-150400.5.26.1

* Python 3...

Read the Full Advisory

References

* bsc#1265265

## References:

* https://www.suse.com/security/cve/CVE-2026-42304.html

* https://bugzilla.suse.com/show_bug.cgi?id=1265265

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:2219-1
Release Date: 2026-06-02T06:02:09Z
Affected Products: * openSUSE Leap 15.4 * Public Cloud Module 15-SP4 * Python 3 Module 15-SP7 * SUSE Linux Enterprise Desktop 15 SP7 * SUSE Linux Enterprise High Performance Computing 15 SP4 * SUSE Linux Enterprise High Performance Computing 15 SP5 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 * SUSE Linux Enterprise Server 15 SP4 * SUSE Linux Enterprise Server 15 SP4 LTSS * SUSE Linux Enterprise Server 15 SP5 * SUSE Linux Enterprise Server 15 SP5 LTSS * SUSE Linux Enterprise Server 15 SP6 * SUSE Linux Enterprise Server 15 SP6 LTSS * SUSE Linux Enterprise Server 15 SP7 * 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 * SUSE Linux Enterprise Server for SAP Applications 15 SP7 * SUSE Manager Proxy 4.3 * SUSE Manager Retail Branch Server 4.3 * SUSE Manager Server 4.3

Topics%20covered

Topics Covered

security advisory denial of service important OpenSUSE python-Twisted CVE-2026-42304

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