openSUSE Leap 15.6 python-aiohttp Key Denial of Service Patch Update

opensuse

March 10, 2026

An update that solves seven vulnerabilities can now be installed.

Description

This update for python-aiohttp fixes the following issues:

* CVE-2025-69228: Fixed denial of service through large payloads

(bsc#1256022).

* CVE-2025-69226: Fixed brute-force leak of internal static file path

components (bsc#1256020).

* CVE-2025-69224: Fixed unicode processing of header values could cause

parsing discrepancies (bsc#1256018).

* CVE-2025-69223: Fixed aiohttp HTTP Parser auto_decompress feature

susceptible to zip bomb (bsc#1256017).

* CVE-2025-69227: Fixed DoS when bypassing asserts (bsc#1256021).

* CVE-2025-69225: Fixed unicode match groups in regexes for ASCII protocol

elements (bsc#1256019).

* CVE-2025-69229: Fixed DoS through chunked messages (bsc#1256023).

Topics Covered

security advisory denial of service important system update OpenSUSE python-aiohttp

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-2026-858=1

* openSUSE Leap 15.6

zypper in -t patch openSUSE-SLE-15.6-2026-858=1

* Public Cloud Module 15-SP4

zypper in -t patch SUSE-SLE-Module-Public-Cloud-15-SP4-2026-858=1

* Python 3 Module 15-SP7

zypper in -t patch SUSE-SLE-Module-Python3-15-SP7-2026-858=1

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4

zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-858=1

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP4

zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-858=1

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5

zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-858=1

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP5

zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-858=1

*...

Read the Full Advisory

Package List

* openSUSE Leap 15.4 (aarch64 ppc64le s390x x86_64 i586)

* python311-aiohttp-debuginfo-3.9.3-150400.10.36.1

* python311-aiohttp-3.9.3-150400.10.36.1

* python-aiohttp-debugsource-3.9.3-150400.10.36.1

* openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64)

* python311-aiohttp-debuginfo-3.9.3-150400.10.36.1

* python311-aiohttp-3.9.3-150400.10.36.1

* python-aiohttp-debugsource-3.9.3-150400.10.36.1

* Public Cloud Module 15-SP4 (aarch64 ppc64le s390x x86_64)

* python311-aiohttp-3.9.3-150400.10.36.1

* Python 3 Module 15-SP7 (aarch64 ppc64le s390x x86_64)

* python311-aiohttp-debuginfo-3.9.3-150400.10.36.1

* python311-aiohttp-3.9.3-150400.10.36.1

* python-aiohttp-debugsource-3.9.3-150400.10.36.1

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (aarch64

x86_64)

* python311-aiohttp-debuginfo-3.9.3-150400.10.36.1

* python311-aiohttp-3.9.3-150400.10.36.1

* python-aiohttp-debugsource-3.9.3-150400.10.36.1

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (aarch64

x86_64)

*...

Read the Full Advisory

References

* bsc#1256017

* bsc#1256018

* bsc#1256019

* bsc#1256020

* bsc#1256021

* bsc#1256022

* bsc#1256023

## References:

* https://www.suse.com/security/cve/CVE-2025-69223.html

* https://www.suse.com/security/cve/CVE-2025-69224.html

* https://www.suse.com/security/cve/CVE-2025-69225.html

* https://www.suse.com/security/cve/CVE-2025-69226.html

* https://www.suse.com/security/cve/CVE-2025-69227.html

* https://www.suse.com/security/cve/CVE-2025-69228.html

* https://www.suse.com/security/cve/CVE-2025-69229.html

* https://bugzilla.suse.com/show_bug.cgi?id=1256017

* https://bugzilla.suse.com/show_bug.cgi?id=1256018

* https://bugzilla.suse.com/show_bug.cgi?id=1256019

* https://bugzilla.suse.com/show_bug.cgi?id=1256020

* https://bugzilla.suse.com/show_bug.cgi?id=1256021

* https://bugzilla.suse.com/show_bug.cgi?id=1256022

* https://bugzilla.suse.com/show_bug.cgi?id=1256023

Severity

important

Lowest

Low

Medium

High

Critical

Announcement ID: SUSE-SU-2026:0858-1

Release Date: 2026-03-10T12:39:04Z

Affected Products: * openSUSE Leap 15.4 * openSUSE Leap 15.6 * 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 Covered

security advisory denial of service important system update OpenSUSE python-aiohttp

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