Upstream information

CVE-2026-116542 at MITRE

Description

Netty netty-tcnative before 2.0.84.Final contains an SNI hostname spoofing vulnerability that allows remote unauthenticated clients to alter hostnames via JNI NewStringUTF decoding. Attackers can send overlong encodings like 0xC0 0x80 in the ClientHello server_name to confuse SNI-based certificate selection, access decisions, and logging.

SUSE information

Overall state of this security issue: Pending

This issue is currently rated as having moderate severity.

CVSS v3 Scores
CVSS detail CNA (VulnCheck) SUSE
Base Score 5.3 6.5
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Attack Vector Network Network
Attack Complexity Low Low
Privileges Required None None
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact None Low
Integrity Impact Low Low
Availability Impact None None
CVSSv3 Version 3.1 3.1
CVSS v4 Scores
CVSS detail CNA (VulnCheck) SUSE
Base Score 6.9 6.9
Vector CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/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 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
Attack Vector Network Network
Attack Complexity Low Low
Attack Requirements None None
Privileges Required None None
User Interaction None None
Vulnerable System Confidentiality Impact None Low
Vulnerable System Integrity Impact Low Low
Vulnerable System Availability Impact None None
Subsequent System Confidentiality Impact None None
Subsequent System Integrity Impact None None
Subsequent System Availability Impact None None
CVSSv4 Version 4.0 4.0
SUSE Bugzilla entry: 1289173 [NEW]

No SUSE Security Announcements cross referenced.

List of packages in QA

Product(s) Package(s)
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS
  • netty-tcnative >= 2.0.85-150200.3.54.1
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
  • netty-tcnative >= 2.0.85-150200.3.54.1
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS
  • netty-tcnative >= 2.0.85-150200.3.54.1
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS
  • netty-tcnative >= 2.0.85-150200.3.54.1
SUSE Linux Enterprise Module for Development Tools 15 SP7
  • netty-tcnative >= 2.0.85-150200.3.54.1
SUSE Linux Enterprise Server 15 SP7
  • netty-tcnative >= 2.0.85-150200.3.54.1
SUSE Linux Enterprise Desktop 15 SP7
  • netty-tcnative >= 2.0.85-150200.3.54.1
SUSE Linux Enterprise Server for SAP Applications 15 SP7
  • netty-tcnative >= 2.0.85-150200.3.54.1
SUSE Linux Enterprise Module for Package Hub 15 SP7
  • netty >= 4.1.140-150200.4.59.1
  • netty-javadoc >= 4.1.140-150200.4.59.1
SUSE Linux Enterprise Server 15 SP4-LTSS
  • netty-tcnative >= 2.0.85-150200.3.54.1
SUSE Linux Enterprise Server 15 SP4-LTSS
  • netty-tcnative >= 2.0.85-150200.3.54.1
SUSE Linux Enterprise Server 15 SP5-LTSS
  • netty-tcnative >= 2.0.85-150200.3.54.1
SUSE Linux Enterprise Server 15 SP5-LTSS
  • netty-tcnative >= 2.0.85-150200.3.54.1
SUSE Linux Enterprise Server 15 SP6-LTSS
  • netty-tcnative >= 2.0.85-150200.3.54.1
SUSE Linux Enterprise Server 15 SP6-LTSS
  • netty-tcnative >= 2.0.85-150200.3.54.1
SUSE Linux Enterprise Server for SAP Applications 15 SP4
  • netty-tcnative >= 2.0.85-150200.3.54.1
SUSE Linux Enterprise Server for SAP Applications 15 SP5
  • netty-tcnative >= 2.0.85-150200.3.54.1
SUSE Linux Enterprise Server for SAP Applications 15 SP6
  • netty-tcnative >= 2.0.85-150200.3.54.1

Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products under general support and receiving all security fixes.
SUSE Linux Enterprise Desktop 15 SP7 netty-tcnative In progress
SUSE Linux Enterprise Module for Development Tools 15 SP7 netty-tcnative In progress
SUSE Linux Enterprise Module for Package Hub 15 SP7 netty In progress
SUSE Linux Enterprise Server 15 SP7 netty-tcnative In progress
SUSE Linux Enterprise Server for SAP Applications 15 SP7 netty-tcnative In progress
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS netty-tcnative In progress
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS netty-tcnative In progress
SUSE Linux Enterprise Server 15 SP4-LTSS netty-tcnative In progress
SUSE Linux Enterprise Server 15 SP5-LTSS netty-tcnative In progress
SUSE Linux Enterprise Server 15 SP6-LTSS netty-tcnative In progress
SUSE Linux Enterprise Server for SAP Applications 15 SP4 netty-tcnative In progress
SUSE Linux Enterprise Server for SAP Applications 15 SP5 netty-tcnative In progress
SUSE Linux Enterprise Server for SAP Applications 15 SP6 netty-tcnative In progress
Products past their end of life and not receiving proactive updates anymore.
SUSE Enterprise Storage 7 netty-tcnative Affected
SUSE Enterprise Storage 7.1 netty-tcnative Affected
SUSE Linux Enterprise Desktop 15 SP2 netty-tcnative Affected
SUSE Linux Enterprise Desktop 15 SP3 netty-tcnative Affected
SUSE Linux Enterprise Desktop 15 SP4 netty-tcnative Affected
SUSE Linux Enterprise Desktop 15 SP5 netty-tcnative Affected
SUSE Linux Enterprise Desktop 15 SP6 netty-tcnative Affected
SUSE Linux Enterprise High Performance Computing 15 SP2 netty-tcnative Affected
SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS netty-tcnative Affected
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS netty-tcnative Affected
SUSE Linux Enterprise High Performance Computing 15 SP3 netty-tcnative Affected
SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS netty-tcnative Affected
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS netty-tcnative Affected
SUSE Linux Enterprise High Performance Computing 15 SP4 netty-tcnative Affected
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS netty-tcnative In progress
SUSE Linux Enterprise High Performance Computing 15 SP5 netty-tcnative Affected
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS netty-tcnative In progress
SUSE Linux Enterprise Module for Development Tools 15 SP2 netty-tcnative Affected
SUSE Linux Enterprise Module for Development Tools 15 SP3 netty-tcnative Affected
SUSE Linux Enterprise Module for Development Tools 15 SP4 netty-tcnative Affected
SUSE Linux Enterprise Module for Development Tools 15 SP5 netty-tcnative Affected
SUSE Linux Enterprise Module for Development Tools 15 SP6 netty-tcnative Affected
SUSE Linux Enterprise Real Time 15 SP2 netty-tcnative Affected
SUSE Linux Enterprise Real Time 15 SP3 netty-tcnative Affected
SUSE Linux Enterprise Real Time 15 SP4 netty-tcnative Affected
SUSE Linux Enterprise Server 15 SP2 netty-tcnative Affected
SUSE Linux Enterprise Server 15 SP2-BCL netty-tcnative Affected
SUSE Linux Enterprise Server 15 SP2-LTSS netty-tcnative Affected
SUSE Linux Enterprise Server 15 SP3 netty-tcnative Affected
SUSE Linux Enterprise Server 15 SP3-BCL netty-tcnative Affected
SUSE Linux Enterprise Server 15 SP3-LTSS netty-tcnative Affected
SUSE Linux Enterprise Server 15 SP4 netty-tcnative Affected
SUSE Linux Enterprise Server 15 SP5 netty-tcnative Affected
SUSE Linux Enterprise Server 15 SP6 netty-tcnative Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP2 netty-tcnative Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP3 netty-tcnative Affected
SUSE Manager Proxy 4.1 netty-tcnative Affected
SUSE Manager Proxy 4.2 netty-tcnative Affected
SUSE Manager Proxy 4.3 netty-tcnative Affected
SUSE Manager Retail Branch Server 4.1 netty-tcnative Affected
SUSE Manager Retail Branch Server 4.2 netty-tcnative Affected
SUSE Manager Retail Branch Server 4.3 netty-tcnative Affected
SUSE Manager Server 4.1 netty-tcnative Affected
SUSE Manager Server 4.2 netty-tcnative Affected
SUSE Manager Server 4.3 netty-tcnative Affected
openSUSE Leap 15.3 netty-tcnative Affected
openSUSE Leap 15.4 netty-tcnative Affected
openSUSE Leap 15.5 netty-tcnative Affected
openSUSE Leap 15.6 netty-tcnative Affected

SUSE Timeline for this CVE

CVE page created: Tue Nov 3 12:58:00 2026
CVE page last modified: Tue Nov 3 16:57:35 2026