Reference page — cumulative record through Saturday, October 3, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-95842

CVE-2026-95842HIGH

moquette-io moquette — Moquette uncaught MQTT command exceptions can terminate shared session event loops

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   L   N   N   N   N   N   H    8.7   .0043   34.9     —

AFFECTED
  Product   Versions    Fixed
  moquette  < 0.18.1 –  —

TIMELINE
  Sep 22  Reserved by GitHub_M
  Sep 23  Published (CNA: GitHub_M)
  Sep 25  EXPLOIT PUBLISHED — CVE-2026-95842 (moquette-io moquette). Public exploit reference added.

CWE-248 · CNA: GitHub_M · CVSS v4.0 · 4 references · NVD status: Analyzed

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
September 22, 2026	Reserved	Reserved by GitHub_M
September 23, 2026	Published	Published (CNA: GitHub_M)
September 25, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-95842 (moquette-io moquette). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
moquette-io	moquette	—	< 0.18.1	—

Weaknesses

CWE-248

References (4)

https://github.com/moquette-io/moquette/commit/86feb7c31e6fac849c465d8079d08c0e7ef01cdf [Patch]
https://github.com/moquette-io/moquette/pull/957 [Patch]
https://github.com/moquette-io/moquette/releases/tag/v0.18.1 [Release Notes]
https://github.com/moquette-io/moquette/security/advisories/GHSA-5f42-97gr-vfhq [Exploit, Mitigation, Vendor Advisory]

Authoritative record: CVE-2026-95842 at cve.org

Vendors: moquette-io

Weaknesses: CWE-248

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-95842 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Saturday, October 3, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.