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