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-2026-95848

CVE-2026-95848CRITICAL

moquette-io moquette — Moquette fails open when configured authentication or authorization classes cannot load

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   L   N   N   N   H   H   N    9.3   .0042   34.4     —

AFFECTED
  Product   Versions    Fixed
  moquette  < 0.18.1 –  —

TIMELINE
  Sep 22  Reserved by GitHub_M
  Sep 23  Published (CNA: GitHub_M)
  Sep 28  EXPLOIT PUBLISHED — CVE-2026-95848 (moquette-io moquette). Public exploit reference added.

CWE-636 · CNA: GitHub_M · CVSS v4.0 · 4 references · NVD status: Analyzed

Description

Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, when a configured authenticator or authorizator class cannot be loaded, Server.initializeAuthenticator and Server.initializeAuthorizatorPolicy treat the failure as though no custom class was configured and fall back to AcceptAllAuthenticator or PermitAllAuthorizatorPolicy. A misspelled class name, missing dependency, constructor failure, or classpath problem can therefore start the broker with authentication or authorization disabled even though the operator configured those controls. 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 28, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-95848 (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-636

References (4)

https://github.com/moquette-io/moquette/commit/14a2f4fd280c8f6a791600c306cbccecb7c67007 [Patch]
https://github.com/moquette-io/moquette/pull/967 [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-2026-95848 at cve.org

Vendors: moquette-io

Weaknesses: CWE-636

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-95848 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.