SUSE-SU-2026:1568-1: moderate: Security update for haproxy

[SLE-UPDATES]

# Security update for haproxy

Announcement ID: SUSE-SU-2026:1568-1  
Release Date: 2026-04-23T12:11:11Z  
Rating: moderate  
References:

  * bsc#1262103

  
Cross-References:

  * CVE-2026-33555

  
CVSS scores:

  * 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
  * CVE-2026-33555 ( SUSE ):  4.0 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N
  * CVE-2026-33555 ( NVD ):  4.0 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N

  
Affected Products:

  * openSUSE Leap 15.6
  * SUSE Linux Enterprise High Availability Extension 15 SP6
  * SUSE Linux Enterprise High Availability Extension 15 SP7
  * SUSE Linux Enterprise Server 15 SP6
  * SUSE Linux Enterprise Server 15 SP7
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6
  * SUSE Linux Enterprise Server for SAP Applications 15 SP7

  
  
An update that solves one vulnerability can now be installed.

## Description:

This update for haproxy fixes the following issue:

  * CVE-2026-33555: Request smuggling via HTTP/3 parser desynchronization
    (bsc#1262103).

## 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 15.6  
    zypper in -t patch SUSE-2026-1568=1

  * SUSE Linux Enterprise High Availability Extension 15 SP6  
    zypper in -t patch SUSE-SLE-Product-HA-15-SP6-2026-1568=1

  * SUSE Linux Enterprise High Availability Extension 15 SP7  
    zypper in -t patch SUSE-SLE-Product-HA-15-SP7-2026-1568=1

## Package List:

  * openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64 i586)
    * haproxy-2.8.11+git0.01c1056a4-150600.3.12.1
    * haproxy-debugsource-2.8.11+git0.01c1056a4-150600.3.12.1
    * haproxy-debuginfo-2.8.11+git0.01c1056a4-150600.3.12.1
  * SUSE Linux Enterprise High Availability Extension 15 SP6 (aarch64 ppc64le
    s390x x86_64)
    * haproxy-2.8.11+git0.01c1056a4-150600.3.12.1
    * haproxy-debugsource-2.8.11+git0.01c1056a4-150600.3.12.1
    * haproxy-debuginfo-2.8.11+git0.01c1056a4-150600.3.12.1
  * SUSE Linux Enterprise High Availability Extension 15 SP7 (aarch64 ppc64le
    s390x x86_64)
    * haproxy-2.8.11+git0.01c1056a4-150600.3.12.1
    * haproxy-debugsource-2.8.11+git0.01c1056a4-150600.3.12.1
    * haproxy-debuginfo-2.8.11+git0.01c1056a4-150600.3.12.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-33555.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1262103

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