Secuno
ENNL
Book demo

CVE-2026-95848

Moquette vulnerability

9.1 CRITICALPublic exploitEPSS 0.42%
  1. Published23 Sept 2026

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected products

Moquette< 0.18.1

Remediation

Fixed in
Moquette≥ 0.18.1

References

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

CVE-2026-775608.1
Tinyauth is an authentication and authorization server. Prior to 5.1.2, Tinyauth…
CVE-2026-813798.2
Not failing securely ('failing open') in Visual Studio Code allows an unauthorized…
CVE-2026-183298.2
Description NGINX JavaScript (njs) and QuickJS (qjs) engines have a vulnerability when…
CVE-2026-693068.2
Not failing securely ('failing open') in Visual Studio Code allows an unauthorized…
CVE-2026-687468.8
Not Failing Securely ('Failing Open') vulnerability in livebook-dev livebook allows an…
CVE-2026-440948.6
An unauthenticated remote attacker can enforce the system to fall back to a firmware…

Frequently asked

Is CVE-2026-95848 being actively exploited?

CVE-2026-95848 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.42%.

How severe is CVE-2026-95848?

CVE-2026-95848 has a CVSS 3.1 base score of 9.1, rated critical. EPSS estimates a 0.42% probability of exploitation.

Which products are affected by CVE-2026-95848?

Affected products include Moquette.

How do I fix CVE-2026-95848?

Upgrade affected software to a fixed version, for example Moquette 0.18.1 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-95848 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation worksBook a demo

Get Patch this first every Monday

Five vulnerabilities that matter this week, ranked on real exploitation. Plain language, one email, no spam.

You can unsubscribe with one click from every issue. We handle your details as described in our privacy policy.

Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.