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VulnerabilityPublished Updated

CVE-2026-95844: moquette · Uncontrolled Recursion

Affects moquetteSource CVE Database V5

0
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Not known to be exploited · CVSS 8.7 High : upgrade to 0.18.1 soon.

Data as of 6 Nov 2026, 23:24 UTC

CVSS 4.0 base score
8.7High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 36% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 0.18.1
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

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 23 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 6 Nov 2026.

What to do

Upgrade moquette and moquette-io/moquette to 0.18.1.

Affected software

ProductAffectedFixed in
moquette-iomoquetteAffected
  • <0.18.1
Fixed in
  • 0.18.1
GitHubmoquette-io/moquettepkg:github/moquette-io/moquetteOther threatsAffected
  • <0.18.1
Fixed in
  • 0.18.1

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Upgrade Moquette to version 0.18.1 or later, where the recursion depth in topic processing is properly limited and the vulnerability is fixed.

Description

Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, Moquette does not limit the depth of topic names and topic filters before processing them through recursive CTrie insertion and matching operations. A remote client can publish or subscribe with a deeply nested topic, causing a StackOverflowError that disrupts session processing and can deny service to broker clients. This issue is fixed in version 0.18.1.

References

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