CVE-2026-95845CWE-770denial-of-service

CVE-2026-95845

High · published September 23, 2026

CVSS v3.1
7.5
EPSS
0%
Percentile
28.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
8.7 · 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
EPSS
0.00358 · 28.3th percentile
Weakness
CWE-770 · Allocation of Resources Without Limits or Throttling
Published
2026-09-23T21:17Z
Affected products (1)
ProductVersionsFixed in
moquette/moquette< 0.18.10.18.1
References (3)
https://github.com/moquette-io/moquette/commit/2482cadfba44e615be704b892009a57ce06a1aba · [email protected]https://github.com/moquette-io/moquette/releases/tag/v0.18.1 · [email protected]https://github.com/moquette-io/moquette/security/advisories/GHSA-5f42-97gr-vfhq · [email protected]
EPSS history
Timeline
  • 25 SEP 03:28Z
    EPSS moved — → 0%
    epss
  • 23 SEP 16:29Z
    Moquette unbounded per-session message queues allow memory exhaustion
    cvelistv5