cve-2026-95845
HIGH CVSS 8.7 cvelistv5
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.
Timeline
- Published
- 2026-09-23 16:29 UTC
- Last Modified
- 2026-09-23
CVSS Details
- Attack Vector
- NETWORK
- Attack Complexity
- LOW
- Privileges Required
- NONE
Affected Products
- moquette-io moquette
Weaknesses (CWE)
References
Linked Vulnerabilities
No linked vulnerabilities found.
{
"containers": {
"cna": {
"affected": [
{
"product": "moquette",
"vendor": "moquette-io",
"versions": [
{
"status": "affected",
"version": "< 0.18.1"
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"descriptions": [
{
"lang": "en",
"value": "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."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 8.7,
"baseSeverity": "HIGH",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"vectorString": "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",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-770",
"description": "CWE-770: Allocation of Resources Without Limits or Throttling",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-23T16:29:51.402Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/moquette-io/moquette/security/advisories/GHSA-5f42-97gr-vfhq",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/moquette-io/moquette/security/advisories/GHSA-5f42-97gr-vfhq"
},
{
"name": "https://github.com/moquette-io/moquette/commit/2482cadfba44e615be704b892009a57ce06a1aba",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/moquette-io/moquette/commit/2482cadfba44e615be704b892009a57ce06a1aba"
},
{
"name": "https://github.com/moquette-io/moquette/releases/tag/v0.18.1",
"tags": [
"x_refsource_MISC"
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"url": "https://github.com/moquette-io/moquette/releases/tag/v0.18.1"
}
],
"source": {
"advisory": "GHSA-f9rr-rg42-xc8x",
"discovery": "UNKNOWN"
},
"title": "Moquette unbounded per-session message queues allow memory exhaustion"
}
},
"cveMetadata": {
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"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-95845",
"datePublished": "2026-09-23T16:29:51.402Z",
"dateReserved": "2026-09-22T16:39:45.793Z",
"dateUpdated": "2026-09-23T16:29:51.402Z",
"state": "PUBLISHED"
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