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SUSE Linux Micro 6.2 HAProxy Moderate Request Smuggling CVE-2026-33555

suse
Calendar Grey April 24, 2026
Dist Suse Esm H88
An important SUSE update for HAProxy addresses a moderate issue with request smuggling via HTTP/3 parser desynchronization.
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 Micro 6.2 zypper in -t patch SUSE-SL-Micro-6.2-632=1 ## Package List: * SUSE Linux Micro 6.2 (aarch64 ppc64le s390x x86_64) * haproxy-debugsource-3.2.15+git64.0fc44b458-160000.2.1 * haproxy-debuginfo-3.2.15+git64.0fc44b458-160000.2.1 * haproxy-3.2.15+git64.0fc44b458-160000.2.1

Topics%20covered

Topics Covered

security advisory moderate SuSE patch request smuggling haproxy

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 Micro 6.2

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

Announcement ID: SUSE-SU-2026:21280-1
Release Date: 2026-04-23T08:15:56Z
Rating: moderate

Topics%20covered

Topics Covered

security advisory moderate SuSE patch request smuggling haproxy

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