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SUSE alert SUSE-SU-2026:2308-1 (netty, netty-tcnative)



From:
              SLE-SECURITY-UPDATES <null@suse.de>


To:
              sle-security-updates@lists.suse.com


Subject:
              SUSE-SU-2026:2308-1: important: Security update for netty, netty-tcnative


Date:
              Tue, 09 Jun 2026 16:31:21 -0000


Message-ID:
              <178102268174.383.4747450140407402858@a22392ad43b1>


# Security update for netty, netty-tcnative

Announcement ID: SUSE-SU-2026:2308-1  
Release Date: 2026-06-09T08:14:00Z  
Rating: important  
References:

  * bsc#1264350
  * bsc#1265243
  * bsc#1265245
  * bsc#1265246
  * bsc#1265272
  * bsc#1265273
  * bsc#1265277
  * bsc#1265279
  * bsc#1265280
  * bsc#1265292
  * bsc#1265294
  * bsc#1265318

  
Cross-References:

  * CVE-2026-41417
  * CVE-2026-42578
  * CVE-2026-42579
  * CVE-2026-42580
  * CVE-2026-42581
  * CVE-2026-42582
  * CVE-2026-42583
  * CVE-2026-42584
  * CVE-2026-42585
  * CVE-2026-42586
  * CVE-2026-42587
  * CVE-2026-44248

  
CVSS scores:

  * CVE-2026-41417 ( SUSE ):  8.3
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-41417 ( SUSE ):  6.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
  * CVE-2026-41417 ( NVD ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
  * CVE-2026-42578 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
  * CVE-2026-42578 ( NVD ):  2.9

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:P/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-2026-42578 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
  * CVE-2026-42579 ( SUSE ):  8.8
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N
  * CVE-2026-42579 ( SUSE ):  8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L
  * CVE-2026-42579 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
  * CVE-2026-42579 ( NVD ):  9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
  * CVE-2026-42580 ( SUSE ):  6.9
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
  * CVE-2026-42580 ( SUSE ):  7.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
  * CVE-2026-42580 ( NVD ):  6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
  * CVE-2026-42581 ( SUSE ):  6.9
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
  * CVE-2026-42581 ( SUSE ):  7.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
  * CVE-2026-42581 ( NVD ):  9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-42581 ( NVD ):  5.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
  * CVE-2026-42582 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-42582 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-42583 ( 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-2026-42583 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-42583 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-42584 ( SUSE ):  6.3
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
  * CVE-2026-42584 ( SUSE ):  5.6 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
  * CVE-2026-42584 ( NVD ):  9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
  * CVE-2026-42584 ( NVD ):  7.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
  * CVE-2026-42585 ( SUSE ):  6.9
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-42585 ( SUSE ):  6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
  * CVE-2026-42585 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
  * CVE-2026-42585 ( NVD ):  6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
  * CVE-2026-42586 ( SUSE ):  8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
  * CVE-2026-42586 ( NVD ):  6.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
  * CVE-2026-42586 ( NVD ):  7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-42587 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-42587 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-44248 ( SUSE ):  6.9
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
  * CVE-2026-44248 ( SUSE ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2026-44248 ( NVD ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2026-44248 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

  
Affected Products:

  * Development Tools Module 15-SP7
  * SUSE Linux Enterprise Desktop 15 SP7
  * SUSE Linux Enterprise High Performance Computing 15 SP4
  * SUSE Linux Enterprise High Performance Computing 15 SP5
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5
  * SUSE Linux Enterprise Real Time 15 SP7
  * SUSE Linux Enterprise Server 15 SP4
  * SUSE Linux Enterprise Server 15 SP4 LTSS
  * SUSE Linux Enterprise Server 15 SP5
  * SUSE Linux Enterprise Server 15 SP5 LTSS
  * SUSE Linux Enterprise Server 15 SP6
  * SUSE Linux Enterprise Server 15 SP6 LTSS
  * SUSE Linux Enterprise Server 15 SP7
  * SUSE Linux Enterprise Server for SAP Applications 15 SP4
  * SUSE Linux Enterprise Server for SAP Applications 15 SP5
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6
  * SUSE Linux Enterprise Server for SAP Applications 15 SP7
  * SUSE Package Hub 15 15-SP7

  
  
An update that solves 12 vulnerabilities can now be installed.

## Description:

This update for netty, netty-tcnative fixes the following issues

  * CVE-2026-41417: missing validations leads to HTTP request smuggling and RTSP
    request injection via start-line injection in `DefaultHttpRequest.setUri()`
    (bsc#1264350).
  * CVE-2026-42578: HTTP Header Injection via HttpProxyHandler Disabled
    Validation in Netty (bsc#1265243).
  * CVE-2026-42579: DNS codec does not enforce RFC 1035 domain name constraints
    during either encoding or decoding (bsc#1265272).
  * CVE-2026-42580: chunk size parser silently overflows int and enables request
    smuggling attacks (bsc#1265273).
  * CVE-2026-42581: TE+CL header coexistence in HTTP/1.0 requests bypasses
    smuggling sanitization (bsc#1265277).
  * CVE-2026-42583: resource exhaustion and possible denial of service via
    `Lz4FrameDecoder` (bsc#1265279).
  * CVE-2026-42584: improper handling of inbound responses in `HttpClientCodec`
    can lead to response desynchronization (bsc#1265280).
  * CVE-2026-42585: Netty is an asynchronous, event-driven network application
    framework (bsc#1265292).
  * CVE-2026-42586: CRLF Injection in Netty Redis Codec Encoder (bsc#1265245).
  * CVE-2026-42587: HttpContentDecompressor maxAllocation bypass via Content-
    Encoding: br/zstd/snappy enables decompression bomb DoS (bsc#1265246).
  * CVE-2026-44248: Netty is an asynchronous, event-driven network application
    framework (bsc#1265294).
  * CVE-2026-42582: HTTP/3 QPACK literal unbounded allocation (bsc#1265318).

Changes for netty:

  * Upgrade to upstream version 4.1.133

## 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:

  * Development Tools Module 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Development-Tools-15-SP7-2026-2308=1

  * SUSE Package Hub 15 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-SP7-2026-2308=1

  * SUSE Linux Enterprise Server 15 SP6 LTSS  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-2308=1

  * SUSE Linux Enterprise Server for SAP Applications 15 SP4  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP4-2026-2308=1

  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-2308=1

  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-2308=1

  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-2308=1

  * SUSE Linux Enterprise Server for SAP Applications 15 SP5  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2026-2308=1

  * SUSE Linux Enterprise Server for SAP Applications 15 SP6  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-2308=1

  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-2308=1

  * SUSE Linux Enterprise Server 15 SP4 LTSS  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-2308=1

  * SUSE Linux Enterprise Server 15 SP5 LTSS  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-2308=1

## Package List:

  * Development Tools Module 15-SP7 (aarch64 ppc64le s390x x86_64)
    * netty-tcnative-debugsource-2.0.77-150200.3.39.1
    * netty-tcnative-2.0.77-150200.3.39.1
  * SUSE Package Hub 15 15-SP7 (aarch64 ppc64le s390x x86_64)
    * netty-4.1.133-150200.4.46.1
  * SUSE Package Hub 15 15-SP7 (noarch)
    * netty-javadoc-4.1.133-150200.4.46.1
  * SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 ppc64le s390x x86_64)
    * netty-tcnative-2.0.77-150200.3.39.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP4 (ppc64le x86_64)
    * netty-tcnative-2.0.77-150200.3.39.1
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (aarch64
    x86_64)
    * netty-tcnative-2.0.77-150200.3.39.1
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (aarch64
    x86_64)
    * netty-tcnative-2.0.77-150200.3.39.1
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (aarch64
    x86_64)
    * netty-tcnative-2.0.77-150200.3.39.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP5 (ppc64le x86_64)
    * netty-tcnative-2.0.77-150200.3.39.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6 (ppc64le x86_64)
    * netty-tcnative-2.0.77-150200.3.39.1
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (aarch64
    x86_64)
    * netty-tcnative-2.0.77-150200.3.39.1
  * SUSE Linux Enterprise Server 15 SP4 LTSS (aarch64 ppc64le s390x x86_64)
    * netty-tcnative-2.0.77-150200.3.39.1
  * SUSE Linux Enterprise Server 15 SP5 LTSS (aarch64 ppc64le s390x x86_64)
    * netty-tcnative-2.0.77-150200.3.39.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-41417.html
  * https://www.suse.com/security/cve/CVE-2026-42578.html
  * https://www.suse.com/security/cve/CVE-2026-42579.html
  * https://www.suse.com/security/cve/CVE-2026-42580.html
  * https://www.suse.com/security/cve/CVE-2026-42581.html
  * https://www.suse.com/security/cve/CVE-2026-42582.html
  * https://www.suse.com/security/cve/CVE-2026-42583.html
  * https://www.suse.com/security/cve/CVE-2026-42584.html
  * https://www.suse.com/security/cve/CVE-2026-42585.html
  * https://www.suse.com/security/cve/CVE-2026-42586.html
  * https://www.suse.com/security/cve/CVE-2026-42587.html
  * https://www.suse.com/security/cve/CVE-2026-44248.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1264350
  * https://bugzilla.suse.com/show_bug.cgi?id=1265243
  * https://bugzilla.suse.com/show_bug.cgi?id=1265245
  * https://bugzilla.suse.com/show_bug.cgi?id=1265246
  * https://bugzilla.suse.com/show_bug.cgi?id=1265272
  * https://bugzilla.suse.com/show_bug.cgi?id=1265273
  * https://bugzilla.suse.com/show_bug.cgi?id=1265277
  * https://bugzilla.suse.com/show_bug.cgi?id=1265279
  * https://bugzilla.suse.com/show_bug.cgi?id=1265280
  * https://bugzilla.suse.com/show_bug.cgi?id=1265292
  * https://bugzilla.suse.com/show_bug.cgi?id=1265294
  * https://bugzilla.suse.com/show_bug.cgi?id=1265318





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