SUSE alert openSUSE-SU-2026:20618-1 (haproxy)

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null@suse.de
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security-announce@lists.opensuse.org
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openSUSE-SU-2026:20618-1: moderate: Security update for haproxy
Date:
             
 
Fri, 24 Apr 2026 17:52:39 +0200
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<20260424155239.26002FCE1@maintenance.suse.de>
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Article
openSUSE security update: security update for haproxy
-------------------------------------------------------------

Announcement ID: openSUSE-SU-2026:20618-1
Rating: moderate
References:

  * bsc#1261626
  * bsc#1262103



Cross-References:

  * CVE-2026-33555



CVSS scores:

  * CVE-2026-33555 ( SUSE ): 4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N
  * CVE-2026-33555 ( SUSE ): 6.3 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N

Affected Products:

         openSUSE Leap 16.0

-------------------------------------------------------------

An update that solves one vulnerability and has 2 bug fixes can now be installed.

Description:

This update for haproxy fixes the following issues:

Security issue:

- CVE-2026-33555: Request smuggling via HTTP/3 parser desynchronization (bsc#1262103).
- bug in SLZ compression (bsc#1261626).


Patch instructions:

   To install this openSUSE security 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 16.0

   zypper in -t patch openSUSE-Leap-16.0-632=1

Package List:

- openSUSE Leap 16.0:

  haproxy-3.2.15+git64.0fc44b458-160000.2.1

References:

  * https://www.suse.com/security/cve/CVE-2026-33555.html