SUSE-SU-2026:20425-1: important: Security update for python-aiohttp, python-Brotli

SLE-SECURITY-UPDATES null at suse.de
Wed Feb 18 16:31:10 UTC 2026



# Security update for python-aiohttp, python-Brotli

Announcement ID: SUSE-SU-2026:20425-1  
Release Date: 2026-02-12T14:01:04Z  
Rating: important  
References:

  * bsc#1246517
  * bsc#1254867
  * bsc#1256017
  * bsc#1256018
  * bsc#1256019
  * bsc#1256020
  * bsc#1256021
  * bsc#1256022
  * bsc#1256023

  
Cross-References:

  * CVE-2025-53643
  * CVE-2025-69223
  * CVE-2025-69224
  * CVE-2025-69225
  * CVE-2025-69226
  * CVE-2025-69227
  * CVE-2025-69228
  * CVE-2025-69229

  
CVSS scores:

  * CVE-2025-53643 ( SUSE ):  6.3
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
  * CVE-2025-53643 ( SUSE ):  3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
  * CVE-2025-53643 ( NVD ):  1.7
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/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
  * CVE-2025-53643 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
  * CVE-2025-69223 ( SUSE ):  8.7
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2025-69223 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2025-69223 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2025-69224 ( SUSE ):  6.3
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
  * CVE-2025-69224 ( SUSE ):  6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
  * CVE-2025-69224 ( NVD ):  6.3
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/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
  * CVE-2025-69224 ( NVD ):  6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
  * CVE-2025-69225 ( SUSE ):  6.9
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
  * CVE-2025-69225 ( SUSE ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
  * CVE-2025-69225 ( NVD ):  2.7
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/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
  * CVE-2025-69225 ( NVD ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
  * CVE-2025-69226 ( SUSE ):  6.3
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
  * CVE-2025-69226 ( SUSE ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
  * CVE-2025-69226 ( NVD ):  6.3
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/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
  * CVE-2025-69226 ( NVD ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
  * CVE-2025-69227 ( SUSE ):  8.7
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2025-69227 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2025-69227 ( NVD ):  6.6
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/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
  * CVE-2025-69227 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2025-69228 ( SUSE ):  8.7
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2025-69228 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2025-69228 ( NVD ):  6.6
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/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
  * CVE-2025-69228 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2025-69229 ( SUSE ):  8.7
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2025-69229 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2025-69229 ( NVD ):  6.6
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/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
  * CVE-2025-69229 ( NVD ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

  
Affected Products:

  * SUSE Linux Enterprise Server 16.0
  * SUSE Linux Enterprise Server for SAP Applications 16.0

  
  
An update that solves eight vulnerabilities and has one fix can now be
installed.

## Description:

This update for python-aiohttp, python-Brotli fixes the following issues:

Changes in python-aiohttp:

  * 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).
  * CVE-2025-53643: Fixed request smuggling due to incorrect parsing of chunked
    trailer section (bsc#1246517).

Changes in python-Brotli:

  * Add max length decompression (bsc#1254867, bsc#1256017).

## 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:

  * SUSE Linux Enterprise Server 16.0  
    zypper in -t patch SUSE-SLES-16.0-259=1

  * SUSE Linux Enterprise Server for SAP Applications 16.0  
    zypper in -t patch SUSE-SLES-16.0-259=1

## Package List:

  * SUSE Linux Enterprise Server 16.0 (aarch64 ppc64le s390x x86_64)
    * python313-aiohttp-3.11.16-160000.3.1
    * python313-Brotli-debuginfo-1.1.0-160000.3.1
    * python-aiohttp-debugsource-3.11.16-160000.3.1
    * python313-aiohttp-debuginfo-3.11.16-160000.3.1
    * python-Brotli-debugsource-1.1.0-160000.3.1
    * python313-Brotli-1.1.0-160000.3.1
  * SUSE Linux Enterprise Server for SAP Applications 16.0 (ppc64le x86_64)
    * python313-aiohttp-3.11.16-160000.3.1
    * python313-Brotli-debuginfo-1.1.0-160000.3.1
    * python-aiohttp-debugsource-3.11.16-160000.3.1
    * python313-aiohttp-debuginfo-3.11.16-160000.3.1
    * python-Brotli-debugsource-1.1.0-160000.3.1
    * python313-Brotli-1.1.0-160000.3.1

## References:

  * https://www.suse.com/security/cve/CVE-2025-53643.html
  * 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=1246517
  * https://bugzilla.suse.com/show_bug.cgi?id=1254867
  * 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

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