Moquette unbounded per-session message queues allow memory exhaustion (CVE-2026-95845) | HOL Guard CVE

High · CVSS 8.7CVE-2026-95845

Moquette unbounded per-session message queues allow memory exhaustion

Answer in brief

CVE-2026-95845 records a High severity (CVSS 8.7) vulnerability in Moquette unbounded per-session message queues allow memory exhaustion. The current sources do not mark it as known exploited. The current feed maps moquette-io/moquette (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 23, 2026Updated Sep 23, 2026Source checked Sep 23, 2026First seen by HOL Sep 23, 2026Material review Sep 23, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 8.7
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 8.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps moquette-io/moquette (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
moquette-io/moquettegeneric	<0.18.1	0.18.1

Recommended response

Check inventory. Check lockfiles and deployed manifests for moquette-io/moquette.
Review the reported fix. Update moquette-io/moquette to 0.18.1 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 23, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 23, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 23, 2026

Sources and claim methodology

Upstream source description

Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, the broker does not enforce a maximum length for pending per-session message queues. When a fast publisher sends messages to a slow subscriber whose in-flight window is full, queued messages can accumulate without bound in memory or persistent storage. Remote clients can use this condition to exhaust broker resources and cause a denial of service. This issue is fixed in version 0.18.1.

Quoted source text, attributed separately from HOL analysis.