CVE-2026-95846
📛 CVE Title
Moquette publishes Last-Will messages without enforcing write authorization
Description
Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, PostOffice.publishWill publishes a client's Last-Will message without applying the canWrite authorization and reserved-topic checks used for a normal PUBLISH. A client can configure a Will for a topic that the client is not permitted to write and cause the broker to publish the unauthorized message when the client disconnects unexpectedly. This issue allows unauthorized message injection into restricted topics. 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:H/VA:N/SC:N/SI:N/SA:N- Effective score
- 8.7 / 10 HIGH source: CNA overview
- CWE(s)
-
CWE-862 - Reserved
- 2026-09-22
- Published
- 2026-09-23 16:29 UTC
- Last updated
- 2026-09-23 16:29 UTC
- Source
- https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/95xxx/CVE-2026-95846.json
- Linked Threat
- CVE-2026-95846 — Moquette publishes Last-Will messages without enforcing write authorization
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 17:17:21 UTC
- NVD last modified
- 2026-09-23 18:12:04 UTC
NVD / KEV / EPSS data refreshed 2026-09-24 04:27 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.
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-2026-85416 - Assigner
- GitHub_M
- Published
- Sep 23, 2026, 4:29:54 PM
- Updated
- Sep 23, 2026, 4:29:54 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:H/VA:N/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, PostOffice.publishWill publishes a client's Last-Will message without applying the canWrite authorization and reserved-topic checks used for a normal PUBLISH. A client can configure a Will for a topic that the client is not permitted to write and cause the broker to publish the unauthorized message when the client disconnects unexpectedly. This issue allows unauthorized message injection into restricted topics. This issue is fixed in version 0.18.1.
Affected products (1)
| Vendor | Product | Versions | Platforms |
|---|---|---|---|
| moquette-io | moquette |
< 0.18.1 (affected)
|
— |
Vendor references (3)
References embedded in the original CVE record by the assigning CNA.
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 (3)
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/f5a323fe782d1505c0097498cb22eb6ec6c96973 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
Remediations (10)
Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.
-
web:horizon3.ai
Horizon3 researchers detail CVE - 2026 -9586, a critical Switchvox SQL injection leading to RCE, with active exploitation observed in the wild.
2026-09-24 11:08 UTC -
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 -
web:msrc.microsoft.com
Security Update Guide - Microsoft Security Response Center
2026-09-24 11:08 UTC -
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 -
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 -
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 -
web:www.cisa.gov
BOD 26-04 further establishes basic expectations for when agencies must check whether threat actors compromised the system before the patch was applied. While BOD 26-04 applies only to FCEB agencies, CISA encourages all organizations to adopt risk-based vulnerability management and prioritize remediation of KEV Catalog vulnerabilities.
2026-09-24 11:08 UTC -
web:www.ibm.com
WebSphere Application Server is shipped as a component of WebSphere Service Registry and Repository. Information about multiple vulnerabilities affecting WebSphere Application Server have been published in security bulletins.
2026-09-24 11:08 UTC -
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 -
web:www.securityweek.com
Google on Thursday rolled out fresh Chrome 152 security updates that resolve 12 vulnerabilities, including an exploited zero-day. Tracked as CVE - 2026 -85046, the high-severity bug is described as a type confusion issue in Chrome's V8 JavaScript and WebAssembly engine. It was reported by Salvatore Gulizia, who received a $1,000 bug bounty reward. "Google is aware that an exploit for CVE-2026 ...
2026-09-24 11:08 UTC
AI Forensic Analysis
Only Available for Registered Users. Sign in to view.
Raw JSON
The full cvelistV5 record. Download as CVE-2026-95846.json.
{
"containers": {
"cna": {
"affected": [
{
"product": "moquette",
"vendor": "moquette-io",
"versions": [
{
"status": "affected",
"version": "< 0.18.1"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, PostOffice.publishWill publishes a client's Last-Will message without applying the canWrite authorization and reserved-topic checks used for a normal PUBLISH. A client can configure a Will for a topic that the client is not permitted to write and cause the broker to publish the unauthorized message when the client disconnects unexpectedly. This issue allows unauthorized message injection into restricted topics. This issue is fixed in version 0.18.1."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 8.7,
"baseSeverity": "HIGH",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "HIGH"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-862",
"description": "CWE-862: Missing Authorization",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-23T16:29:54.130Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/moquette-io/moquette/security/advisories/GHSA-5f42-97gr-vfhq",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/moquette-io/moquette/security/advisories/GHSA-5f42-97gr-vfhq"
},
{
"name": "https://github.com/moquette-io/moquette/commit/f5a323fe782d1505c0097498cb22eb6ec6c96973",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/moquette-io/moquette/commit/f5a323fe782d1505c0097498cb22eb6ec6c96973"
},
{
"name": "https://github.com/moquette-io/moquette/releases/tag/v0.18.1",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/moquette-io/moquette/releases/tag/v0.18.1"
}
],
"source": {
"advisory": "GHSA-3rhq-5crp-9w5f",
"discovery": "UNKNOWN"
},
"title": "Moquette publishes Last-Will messages without enforcing write authorization"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-95846",
"datePublished": "2026-09-23T16:29:54.130Z",
"dateReserved": "2026-09-22T16:39:45.793Z",
"dateUpdated": "2026-09-23T16:29:54.130Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}