Upstream information

CVE-2026-4890 at MITRE

Description

A Denial of Service (DoS) vulnerability in the DNSSEC validation of dnsmasq allows remote attackers to cause a denial of service via a crafted DNS packet.

SUSE information

Overall state of this security issue: Pending

This issue is currently rated as having important severity.

CVSS v3 Scores
CVSS detail CNA (CISA-ADP) SUSE
Base Score 7.5 7.5
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network Network
Attack Complexity Low Low
Privileges Required None None
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact None None
Integrity Impact None None
Availability Impact High High
CVSSv3 Version 3.1 3.1
SUSE Bugzilla entry: 1265001 [NEW]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
Image SLE-Micro
Image SLE-Micro-Azure
Image SLE-Micro-BYOS
Image SLE-Micro-BYOS-Azure
Image SLE-Micro-BYOS-EC2
Image SLE-Micro-BYOS-GCE
Image SLE-Micro-EC2
Image SLE-Micro-GCE
  • libgnutls30 >= 3.8.3-5.1
SUSE Liberty Linux 8
  • dnsmasq >= 2.79-36.el8_10
  • dnsmasq-utils >= 2.79-36.el8_10
 Patchnames:
RHSA-2026:20589
SUSE Liberty Linux 9
  • dnsmasq >= 2.85-18.el9_8.1
  • dnsmasq-utils >= 2.85-18.el9_8.1
 Patchnames:
RHSA-2026:19373
SUSE Linux Enterprise Desktop 15 SP7
SUSE Linux Enterprise High Performance Computing 15 SP7
SUSE Linux Enterprise Module for Basesystem 15 SP7
SUSE Linux Enterprise Server 15 SP7
SUSE Linux Enterprise Server for SAP Applications 15 SP7
  • dnsmasq >= 2.92rel2-150400.16.12.1
 Patchnames:
SUSE-SLE-Module-Basesystem-15-SP7-2026-1934
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS
  • dnsmasq >= 2.92rel2-150400.16.12.1
 Patchnames:
SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-1934
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
  • dnsmasq >= 2.92rel2-150400.16.12.1
 Patchnames:
SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-1934
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS
  • dnsmasq >= 2.92rel2-150400.16.12.1
 Patchnames:
SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-1934
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS
  • dnsmasq >= 2.92rel2-150400.16.12.1
 Patchnames:
SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-1934
SUSE Linux Enterprise Micro 5.3
  • dnsmasq >= 2.92rel2-150400.16.12.1
 Patchnames:
SUSE-SLE-Micro-5.3-2026-1934
SUSE Linux Enterprise Micro 5.4
  • dnsmasq >= 2.92rel2-150400.16.12.1
 Patchnames:
SUSE-SLE-Micro-5.4-2026-1934
SUSE Linux Enterprise Micro 5.5
  • dnsmasq >= 2.92rel2-150400.16.12.1
 Patchnames:
SUSE-SLE-Micro-5.5-2026-1934
SUSE Linux Enterprise Server 15 SP4-LTSS
  • dnsmasq >= 2.92rel2-150400.16.12.1
 Patchnames:
SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-1934
SUSE Linux Enterprise Server 15 SP5-LTSS
  • dnsmasq >= 2.92rel2-150400.16.12.1
 Patchnames:
SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-1934
SUSE Linux Enterprise Server 15 SP6-LTSS
  • dnsmasq >= 2.92rel2-150400.16.12.1
 Patchnames:
SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-1934
SUSE Linux Enterprise Server 16.0
SUSE Linux Enterprise Server for SAP applications 16.0
  • dnsmasq >= 2.92rel2-160000.1.1
  • dnsmasq-utils >= 2.92rel2-160000.1.1
 Patchnames:
SUSE-SLES-16.0-742
SUSE Linux Enterprise Server for SAP Applications 15 SP4
  • dnsmasq >= 2.92rel2-150400.16.12.1
 Patchnames:
SUSE-SLE-Product-SLES_SAP-15-SP4-2026-1934
SUSE Linux Enterprise Server for SAP Applications 15 SP5
  • dnsmasq >= 2.92rel2-150400.16.12.1
 Patchnames:
SUSE-SLE-Product-SLES_SAP-15-SP5-2026-1934
SUSE Linux Enterprise Server for SAP Applications 15 SP6
  • dnsmasq >= 2.92rel2-150400.16.12.1
 Patchnames:
SUSE-SLE-Product-SLES_SAP-15-SP6-2026-1934
SUSE Linux Micro 6.0
  • dnsmasq >= 2.92rel2-1.1
 Patchnames:
SUSE-SLE-Micro-6.0-709
SUSE Linux Micro 6.1
  • dnsmasq >= 2.92rel2-slfo.1.1_1.1
 Patchnames:
SUSE-SLE-Micro-6.1-533
SUSE Linux Micro 6.2
  • dnsmasq >= 2.92rel2-160000.1.1
 Patchnames:
SUSE-SL-Micro-6.2-742
SUSE Manager Proxy LTS 4.3
  • dnsmasq >= 2.92rel2-150400.16.12.1
 Patchnames:
SUSE-SLE-Product-SUSE-Manager-Proxy-4.3-LTS-2026-1934
SUSE Manager Retail Branch Server LTS 4.3
  • dnsmasq >= 2.92rel2-150400.16.12.1
 Patchnames:
SUSE-SLE-Product-SUSE-Manager-Retail-Branch-Server-4.3-LTS-2026-1934
SUSE Manager Server LTS 4.3
  • dnsmasq >= 2.92rel2-150400.16.12.1
 Patchnames:
SUSE-SLE-Product-SUSE-Manager-Server-4.3-LTS-2026-1934
openSUSE Leap 16.0
  • dnsmasq >= 2.92rel2-160000.1.1
  • dnsmasq-utils >= 2.92rel2-160000.1.1
 Patchnames:
openSUSE-Leap-16.0-742
openSUSE Tumbleweed
  • dnsmasq >= 2.92rel2-1.1
  • dnsmasq-utils >= 2.92rel2-1.1
 Patchnames:
openSUSE-Tumbleweed-2026-10821

List of packages in QA

Product(s) Package(s)
SUSE Linux Enterprise Server 16.0
  • dnsmasq >= 2.92rel2-160000.1.1
  • dnsmasq-utils >= 2.92rel2-160000.1.1

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 dnsmasq Released
SUSE Linux Enterprise High Performance Computing 15 SP7 dnsmasq Released
SUSE Linux Enterprise Micro 5.3 dnsmasq Released
SUSE Linux Enterprise Micro 5.4 dnsmasq Released
SUSE Linux Enterprise Micro 5.5 dnsmasq Released
SUSE Linux Enterprise Micro for Rancher 5.3 dnsmasq Released
SUSE Linux Enterprise Micro for Rancher 5.4 dnsmasq Released
SUSE Linux Enterprise Module for Basesystem 15 SP7 dnsmasq Released
SUSE Linux Enterprise Server 15 SP7 dnsmasq Released
SUSE Linux Enterprise Server 16.0 dnsmasq In progress
SUSE Linux Enterprise Server 16.1 dnsmasq Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP7 dnsmasq Released
SUSE Linux Enterprise Server for SAP applications 16.0 dnsmasq Released
SUSE Linux Enterprise Server for SAP applications 16.1 dnsmasq Affected
SUSE Linux Micro 6.0 dnsmasq Released
SUSE Linux Micro 6.1 dnsmasq Released
SUSE Linux Micro 6.2 dnsmasq Released
openSUSE Leap 16.0 dnsmasq Affected
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise High Performance Computing 15 SP4 dnsmasq Affected
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS dnsmasq Released
SUSE Linux Enterprise High Performance Computing 15 SP5 dnsmasq Affected
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS dnsmasq Released
SUSE Linux Enterprise Module for Basesystem 15 SP4 dnsmasq Affected
SUSE Linux Enterprise Module for Basesystem 15 SP5 dnsmasq Affected
SUSE Linux Enterprise Module for Basesystem 15 SP6 dnsmasq Affected
SUSE Linux Enterprise Server 12 SP5 dnsmasq Affected
SUSE Linux Enterprise Server 12 SP5-LTSS dnsmasq Affected
SUSE Linux Enterprise Server 12 SP5-LTSS Extended Security dnsmasq Affected
SUSE Linux Enterprise Server 15 SP4 dnsmasq Affected
SUSE Linux Enterprise Server 15 SP4-LTSS dnsmasq Released
SUSE Linux Enterprise Server 15 SP5 dnsmasq Affected
SUSE Linux Enterprise Server 15 SP5-LTSS dnsmasq Released
SUSE Linux Enterprise Server 15 SP6 dnsmasq Affected
SUSE Linux Enterprise Server 15 SP6-LTSS dnsmasq Released
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 dnsmasq Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP6 dnsmasq Released
SUSE Manager Proxy 4.3 dnsmasq Affected
SUSE Manager Proxy LTS 4.3 dnsmasq Released
SUSE Manager Retail Branch Server 4.3 dnsmasq Affected
SUSE Manager Retail Branch Server LTS 4.3 dnsmasq Released
SUSE Manager Server 4.3 dnsmasq Affected
SUSE Manager Server LTS 4.3 dnsmasq Released
Products past their end of life and not receiving proactive updates anymore.
HPE Helion OpenStack 8 dnsmasq Affected
SUSE CaaS Platform 4.0 dnsmasq Affected
SUSE Enterprise Storage 6 dnsmasq Affected
SUSE Enterprise Storage 7 dnsmasq Affected
SUSE Enterprise Storage 7.1 dnsmasq Affected
SUSE Linux Enterprise Desktop 12 SP1 dnsmasq Affected
SUSE Linux Enterprise Desktop 12 SP2 dnsmasq Affected
SUSE Linux Enterprise Desktop 12 SP3 dnsmasq Affected
SUSE Linux Enterprise Desktop 12 SP4 dnsmasq Affected
SUSE Linux Enterprise Desktop 15 SP1 dnsmasq Affected
SUSE Linux Enterprise Desktop 15 SP2 dnsmasq Affected
SUSE Linux Enterprise Desktop 15 SP3 dnsmasq Affected
SUSE Linux Enterprise Desktop 15 SP4 dnsmasq Affected
SUSE Linux Enterprise Desktop 15 SP5 dnsmasq Affected
SUSE Linux Enterprise Desktop 15 SP6 dnsmasq Affected
SUSE Linux Enterprise High Performance Computing 15 SP1 dnsmasq Affected
SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS dnsmasq Affected
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS dnsmasq Affected
SUSE Linux Enterprise High Performance Computing 15 SP2 dnsmasq Affected
SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS dnsmasq Affected
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS dnsmasq Affected
SUSE Linux Enterprise High Performance Computing 15 SP3 dnsmasq Affected
SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS dnsmasq Affected
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS dnsmasq Affected
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS dnsmasq Released
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS dnsmasq Released
SUSE Linux Enterprise High Performance Computing 15 SP6 dnsmasq Affected
SUSE Linux Enterprise Micro 5.0 dnsmasq Affected
SUSE Linux Enterprise Micro 5.1 dnsmasq Affected
SUSE Linux Enterprise Micro 5.2 dnsmasq Affected
SUSE Linux Enterprise Module for Basesystem 15 SP1 dnsmasq Affected
SUSE Linux Enterprise Module for Basesystem 15 SP2 dnsmasq Affected
SUSE Linux Enterprise Module for Basesystem 15 SP3 dnsmasq Affected
SUSE Linux Enterprise Point of Sale 12 SP2-CLIENT dnsmasq Affected
SUSE Linux Enterprise Real Time 15 SP2 dnsmasq Affected
SUSE Linux Enterprise Real Time 15 SP3 dnsmasq Affected
SUSE Linux Enterprise Real Time 15 SP4 dnsmasq Affected
SUSE Linux Enterprise Server 12 SP1 dnsmasq Affected
SUSE Linux Enterprise Server 12 SP1-LTSS dnsmasq Affected
SUSE Linux Enterprise Server 12 SP2 dnsmasq Affected
SUSE Linux Enterprise Server 12 SP2-BCL dnsmasq Affected
SUSE Linux Enterprise Server 12 SP2-ESPOS dnsmasq Affected
SUSE Linux Enterprise Server 12 SP2-LTSS dnsmasq Affected
SUSE Linux Enterprise Server 12 SP3 dnsmasq Affected
SUSE Linux Enterprise Server 12 SP3-BCL dnsmasq Affected
SUSE Linux Enterprise Server 12 SP3-ESPOS dnsmasq Affected
SUSE Linux Enterprise Server 12 SP3-LTSS dnsmasq Affected
SUSE Linux Enterprise Server 12 SP4 dnsmasq Affected
SUSE Linux Enterprise Server 12 SP4-ESPOS dnsmasq Affected
SUSE Linux Enterprise Server 12 SP4-LTSS dnsmasq Affected
SUSE Linux Enterprise Server 15 SP1 dnsmasq Affected
SUSE Linux Enterprise Server 15 SP1-BCL dnsmasq Affected
SUSE Linux Enterprise Server 15 SP1-LTSS dnsmasq Affected
SUSE Linux Enterprise Server 15 SP2 dnsmasq Affected
SUSE Linux Enterprise Server 15 SP2-BCL dnsmasq Affected
SUSE Linux Enterprise Server 15 SP2-LTSS dnsmasq Affected
SUSE Linux Enterprise Server 15 SP3 dnsmasq Affected
SUSE Linux Enterprise Server 15 SP3-BCL dnsmasq Affected
SUSE Linux Enterprise Server 15 SP3-LTSS dnsmasq Affected
SUSE Linux Enterprise Server for Raspberry Pi 12 SP2 dnsmasq Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP1 dnsmasq Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP2 dnsmasq Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP3 dnsmasq Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 dnsmasq Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP1 dnsmasq Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP2 dnsmasq Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP3 dnsmasq Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP4 dnsmasq Released
SUSE Linux Enterprise Server for SAP Applications 15 SP5 dnsmasq Released
SUSE Manager Proxy 4.0 dnsmasq Affected
SUSE Manager Proxy 4.1 dnsmasq Affected
SUSE Manager Proxy 4.2 dnsmasq Affected
SUSE Manager Retail Branch Server 4.0 dnsmasq Affected
SUSE Manager Retail Branch Server 4.1 dnsmasq Affected
SUSE Manager Retail Branch Server 4.2 dnsmasq Affected
SUSE Manager Server 4.0 dnsmasq Affected
SUSE Manager Server 4.1 dnsmasq Affected
SUSE Manager Server 4.2 dnsmasq Affected
SUSE OpenStack Cloud 6 dnsmasq Affected
SUSE OpenStack Cloud 6-LTSS dnsmasq Affected
SUSE OpenStack Cloud 7 dnsmasq Affected
SUSE OpenStack Cloud 8 dnsmasq Affected
SUSE OpenStack Cloud 9 dnsmasq Affected
SUSE OpenStack Cloud Crowbar 8 dnsmasq Affected
SUSE OpenStack Cloud Crowbar 9 dnsmasq Affected
openSUSE Leap 15.3 dnsmasq Affected
openSUSE Leap 15.4 dnsmasq Released
openSUSE Leap 15.5 dnsmasq Affected
openSUSE Leap 15.6 dnsmasq Affected
openSUSE Leap Micro 5.2 dnsmasq Affected
openSUSE Leap Micro 5.3 dnsmasq Affected
openSUSE Leap Micro 5.4 dnsmasq Affected
openSUSE Leap Micro 5.5 dnsmasq Affected
Products at an unknown state of their lifecycle.
SUSE Manager Proxy 4.3 LTS dnsmasq Released
SUSE Manager Retail Branch Server 4.3 LTS dnsmasq Released
SUSE Manager Server 4.3 LTS dnsmasq Released
Container Status
suse/sles/15.2/virt-launcher:0.38.1
suse/sles/15.3/virt-launcher:0.45.0		 dnsmasqAffected
suse/sles/15.4/virt-launcher:0.49.0 dnsmasqIn progress

SUSE Timeline for this CVE

CVE page created: Mon May 11 22:01:12 2026
CVE page last modified: Mon Jun 1 19:37:55 2026