SUSE haproxy Moderate Request Smuggling CVE-2026-33555 2026-21390-1
suse
April 28, 2026
An update that solves one vulnerability and has one fix can now be installed.
Summary
## 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 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 for SAP applications 16.0 zypper in -t patch SUSE-SLES-16.0-632=1 ## Package List: * SUSE Linux Enterprise Server for SAP applications 16.0 (ppc64le x86_64) * haproxy-3.2.15+git64.0fc44b458-160000.2.1 * haproxy-debugsource-3.2.15+git64.0fc44b458-160000.2.1 * haproxy-debuginfo-3.2.15+git64.0fc44b458-160000.2.1
Topics Covered
References
* bsc#1261626
* bsc#1262103
Cross-
* 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:
* SUSE Linux Enterprise Server for SAP applications 16.0
An update that solves one vulnerability and has one fix can now be installed.
##
* https://www.suse.com/security/cve/CVE-2026-33555.html
* https://bugzilla.suse.com/show_bug.cgi?id=1261626
* https://bugzilla.suse.com/show_bug.cgi?id=1262103
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Announcement ID: SUSE-SU-2026:21390-1
Release Date: 2026-04-23T08:15:56Z
Rating: moderate
Topics Covered
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