GHSA-G3PR-3P32-FP23
Vulnerability from github – Published: 2026-06-09 06:31 – Updated: 2026-08-13 15:34
VLAI
Summary
Micrometer HTTP server instrumentations DoS
Details
In Micrometer, it is possible for a user to provide specially crafted HTTP requests that may cause a denial-of-service (DoS) condition.
Affected versions: micrometer-core 1.16.0 through 1.16.5; 1.15.0 through 1.15.11; 1.14.0 through 1.14.15; 1.13.0 through 1.13.18; 1.9.0 through 1.9.17. micrometer-jetty11 1.16.0 through 1.16.5; 1.15.0 through 1.15.11; 1.14.0 through 1.14.15; 1.13.0 through 1.13.18. micrometer-jetty12 1.16.0 through 1.16.5; 1.15.0 through 1.15.11; 1.14.0 through 1.14.15; 1.13.0 through 1.13.18.
Severity
7.5 (High)
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 1.16.5"
},
"package": {
"ecosystem": "Maven",
"name": "io.micrometer:micrometer-core"
},
"ranges": [
{
"events": [
{
"introduced": "1.16.0"
},
{
"fixed": "1.16.6"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 1.15.11"
},
"package": {
"ecosystem": "Maven",
"name": "io.micrometer:micrometer-core"
},
"ranges": [
{
"events": [
{
"introduced": "1.15.0"
},
{
"fixed": "1.15.12"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "io.micrometer:micrometer-core"
},
"ranges": [
{
"events": [
{
"introduced": "1.14.0"
},
{
"last_affected": "1.14.14"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "io.micrometer:micrometer-core"
},
"ranges": [
{
"events": [
{
"introduced": "1.10.0"
},
{
"last_affected": "1.13.15"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "io.micrometer:micrometer-core"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "1.9.17"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 1.16.5"
},
"package": {
"ecosystem": "Maven",
"name": "io.micrometer:micrometer-jetty12"
},
"ranges": [
{
"events": [
{
"introduced": "1.16.0"
},
{
"fixed": "1.16.6"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 1.15.11"
},
"package": {
"ecosystem": "Maven",
"name": "io.micrometer:micrometer-jetty12"
},
"ranges": [
{
"events": [
{
"introduced": "1.15.0"
},
{
"fixed": "1.15.12"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "io.micrometer:micrometer-jetty12"
},
"ranges": [
{
"events": [
{
"introduced": "1.14.0"
},
{
"last_affected": "1.14.14"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "io.micrometer:micrometer-jetty12"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "1.13.15"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 1.16.5"
},
"package": {
"ecosystem": "Maven",
"name": "io.micrometer:micrometer-jetty11"
},
"ranges": [
{
"events": [
{
"introduced": "1.16.0"
},
{
"fixed": "1.16.6"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 1.15.11"
},
"package": {
"ecosystem": "Maven",
"name": "io.micrometer:micrometer-jetty11"
},
"ranges": [
{
"events": [
{
"introduced": "1.15.0"
},
{
"fixed": "1.15.12"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "io.micrometer:micrometer-jetty11"
},
"ranges": [
{
"events": [
{
"introduced": "1.14.0"
},
{
"last_affected": "1.14.14"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "io.micrometer:micrometer-jetty11"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "1.13.15"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-40984"
],
"database_specific": {
"cwe_ids": [
"CWE-400",
"CWE-770"
],
"github_reviewed": true,
"github_reviewed_at": "2026-08-06T19:10:08Z",
"nvd_published_at": "2026-06-09T05:16:34Z",
"severity": "HIGH"
},
"details": "In Micrometer, it is possible for a user to provide specially crafted HTTP requests that may cause a denial-of-service (DoS) condition.\n\nAffected versions:\nmicrometer-core 1.16.0 through 1.16.5; 1.15.0 through 1.15.11; 1.14.0 through 1.14.15; 1.13.0 through 1.13.18; 1.9.0 through 1.9.17.\nmicrometer-jetty11 1.16.0 through 1.16.5; 1.15.0 through 1.15.11; 1.14.0 through 1.14.15; 1.13.0 through 1.13.18.\nmicrometer-jetty12 1.16.0 through 1.16.5; 1.15.0 through 1.15.11; 1.14.0 through 1.14.15; 1.13.0 through 1.13.18.",
"id": "GHSA-g3pr-3p32-fp23",
"modified": "2026-08-13T15:34:06Z",
"published": "2026-06-09T06:31:56Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-40984"
},
{
"type": "WEB",
"url": "https://github.com/micrometer-metrics/micrometer/commit/36da131525228188a36779a28471a76c79213dd4"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:36839"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:37390"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:41951"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:50848"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:50849"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:54435"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2026-40984"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2486716"
},
{
"type": "PACKAGE",
"url": "https://github.com/micrometer-metrics/micrometer"
},
{
"type": "WEB",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-40984.json"
},
{
"type": "WEB",
"url": "https://spring.io/security/cve-2026-40984"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "Micrometer HTTP server instrumentations DoS"
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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