CVE-2026-95842

Description

Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, SessionEventLoop.run catches only InterruptedException, and SessionEventLoopGroup does not restart a terminated loop. An MQTT command that raises an uncaught exception can terminate an event loop shared by multiple client sessions, preventing every co-located client from processing PUBLISH, SUBSCRIBE, PUBACK, and other commands. An attacker can select client IDs that map across the available loops to disrupt session processing for the entire broker. This issue is fixed in version 0.18.1.

Overview

State: PUBLISHED
Assigner (CNA): GitHub_M
CVSS severity: HIGH
CVSS score: 8.7 / 10
CVSS vector: 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
Effective score: 8.7 / 10 HIGH source: CNA overview
CWE(s): CWE-248
Reserved: 2026-09-22
Published: 2026-09-23 16:29 UTC
Last updated: 2026-09-23 16:49 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/95xxx/CVE-2026-95842.json
Linked Threat: CVE-2026-95842 — Moquette uncaught MQTT command exceptions can terminate shared session event loops

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published: 2026-09-23 17:17:20 UTC
NVD last modified: 2026-09-23 18:12:04 UTC

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2026-85412
Assigner: GitHub_M
Published: Sep 23, 2026, 4:29:41 PM
Updated: Sep 23, 2026, 4:49:25 PM
EUVD base score (CVSS 4.0): 8.7 / 10
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
EUVD-reported EPSS: 0.0000
Vendors: moquette-io
Products: moquette (< 0.18.1)

ENISA description: Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, SessionEventLoop.run catches only InterruptedException, and SessionEventLoopGroup does not restart a terminated loop. An MQTT command that raises an uncaught exception can terminate an event loop shared by multiple client sessions, preventing every co-located client from processing PUBLISH, SUBSCRIBE, PUBACK, and other commands. An attacker can select client IDs that map across the available loops to disrupt session processing for the entire broker. This issue is fixed in version 0.18.1.

EUVD references (4)

Affected products (1)

Vendor	Product	Versions	Platforms
moquette-io	moquette	`< 0.18.1` (affected)	—

Vendor references (4)

References embedded in the original CVE record by the assigning CNA.

https://github.com/moquette-io/moquette/security/advisories/GHSA-5f42-97gr-vfhq x_refsource_CONFIRM
https://github.com/moquette-io/moquette/pull/957 x_refsource_MISC
https://github.com/moquette-io/moquette/commit/86feb7c31e6fac849c465d8079d08c0e7ef01cdf x_refsource_MISC
https://github.com/moquette-io/moquette/releases/tag/v0.18.1 x_refsource_MISC

Web references (0)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

No web references attached yet.

NVD-tagged references (5)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

https://github.com/moquette-io/moquette/commit/86feb7c31e6fac849c465d8079d08c0e7ef01cdf security-advisories@github.com
https://github.com/moquette-io/moquette/pull/957 security-advisories@github.com
https://github.com/moquette-io/moquette/releases/tag/v0.18.1 security-advisories@github.com
https://github.com/moquette-io/moquette/security/advisories/GHSA-5f42-97gr-vfhq security-advisories@github.com
https://github.com/moquette-io/moquette/security/advisories/GHSA-5f42-97gr-vfhq 134c704f-9b21-4f2e-91b3-4a467353bcc0

Remediations (10)

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

CVE-2026-69414 ShieldBreak Zero-Day: No Patch, and CISA BOD 26-04 Gives ...

web:blog.qualys.com

What can I do before Microsoft releases a patch ? Qualys TruRisk™ Eliminate provides a recommended mitigation for CVE - 2026 -69414 that can be applied to affected systems while Microsoft works on a fix . Assets can then be reassessed in Qualys VMDR to verify the remediation outcome.

2026-09-24 11:08 UTC
Security Update Guide - Microsoft

web:msrc.microsoft.com

The Microsoft Security Response Center (MSRC) investigates all reports of security vulnerabilities affecting Microsoft products and services, and provides the information here as part of the ongoing effort to help you manage security risks and help keep your systems protected.

2026-09-24 11:08 UTC
Cisco Advance Notification for Publication of September 16, 2026 ...

web:sec.cloudapps.cisco.com

On September 16, 2026 , the Cisco Product Security Incident Response Team (PSIRT) published the advisories that are listed in the following tables. To remediate these vulnerabilities, Cisco strongly recommends that customers upgrade to the fixed software that is indicated in the advisories. For more information about changes in Cisco PSIRT vulnerability disclosure, see Strengthening the ...

2026-09-24 11:08 UTC
Microsoft Patch Tracker (September 2026): Exploit-Ranked | Senserva

web:senserva.com

Every Microsoft security patch (KB) and the CVEs it fixes, with severity, CVSS, and CISA KEV status. Cross-linked to the CVE reference.

2026-09-24 11:08 UTC
[Security Advisory] CVE-2026-0542 - ServiceNow

web:support.servicenow.com

ServiceNow has addressed a critical vulnerability, tracked as CVE - 2026 -0542, that was identified in the ServiceNow AI Platform. This vulnerability could potentially enable an unauthenticated user, in certain

2026-09-24 11:08 UTC
What Is CVE Remediation in 2026? - aikido.dev

web:www.aikido.dev

CVE remediation is fixing known flaws in the software you run. Why upgrading often fails, what remediation actually involves, and how backporting fixes it.

2026-09-24 11:08 UTC
Security Bulletin: IBM WebSphere Application Server and WebSphere ...

web:www.ibm.com

Remediation /Fixes IBM strongly recommends addressing the vulnerability now by applying a currently available interim fix or fix pack that contains the fix for APAR PH71893 and PH71916 . To determine if a feature is enabled for WebSphere Application Server Liberty, refer to How to determine if Liberty is using a specific feature.

2026-09-24 11:08 UTC
Oracle Critical Patch Update Advisory - April 2026

web:www.oracle.com

Oracle Critical Patch Update Advisory - April 2026 Description A Critical Patch Update is a collection of patches for multiple security vulnerabilities. These patches address vulnerabilities in Oracle code and in third party components included in Oracle products. These patches are usually cumulative, but each advisory describes only the security patches added since the previous Critical Patch ...

2026-09-24 11:08 UTC
Oracle Critical Patch Update Advisory - July 2026

web:www.oracle.com

This Critical Patch Update contains 1448 new security patches across the product families listed below. Please note that a My Oracle Support (MOS) note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at July 2026 Critical Patch Update: Executive Summary and Analysis.

2026-09-24 11:08 UTC
Patch Tuesday September 2026: Security Updates & CVE Analysis

web:zecurit.com

Get the complete breakdown of Microsoft's September 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .

2026-09-24 11:08 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-95842.json.

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