CVE-2026-95846

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Source
https://cve.org/CVERecord?id=CVE-2026-95846
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-95846.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-95846
Aliases
Published
2026-09-23T16:29:54Z
Modified
2026-09-24T08:22:27Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
Moquette publishes Last-Will messages without enforcing write authorization
Details

Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, PostOffice.publishWill publishes a client's Last-Will message without applying the canWrite authorization and reserved-topic checks used for a normal PUBLISH. A client can configure a Will for a topic that the client is not permitted to write and cause the broker to publish the unauthorized message when the client disconnects unexpectedly. This issue allows unauthorized message injection into restricted topics. This issue is fixed in version 0.18.1.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-862"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/95xxx/CVE-2026-95846.json"
}
References

Affected packages

Git / github.com/moquette-io/moquette

Affected ranges

Type
GIT
Repo
https://github.com/moquette-io/moquette
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
e8ce83336acce69d8e9c11c98805217aa156a16b
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "fixed":  "0.18.1"
        }
    ],
    "source":  "AFFECTED_FIELD"
}

Affected versions

0.*
0.18.0
0.7
Other
before_sofia2
last_gradle
last_osgi
last_with_maven
last_with_ringbuffer
second_try_with_osgi_giveup
v0.*
v0.10
v0.11
v0.12
v0.12.1
v0.18.0
v0.8
v0.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-95846.json"
vanir_signatures 
[
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
                "264460424198365981025294149882277014898",
                "11410191927348774178838709852851310256",
                "273802157253247414129958982189405529275",
                "315296026132642631038163665576809441438"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2026-95846-dd85d397",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/moquette-io/moquette/commit/e8ce83336acce69d8e9c11c98805217aa156a16b",
        "target":  {
            "file":  "broker/src/main/java/io/moquette/broker/Server.java"
        }
    }
]
vanir_signatures_modified 
"2026-09-24T08:22:27Z"