{
"id": "GHSA-g3pr-3p32-fp23",
"aliases": [
"CVE-2026-40984"
],
"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.",
"summary": "Micrometer HTTP server instrumentations DoS",
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "1.16.0"
},
{
"fixed": "1.16.6"
}
]
}
],
"package": {
"name": "io.micrometer:micrometer-core",
"ecosystem": "Maven"
},
"database_specific": {
"last_known_affected_version_range": "<= 1.16.5"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "1.15.0"
},
{
"fixed": "1.15.12"
}
]
}
],
"package": {
"name": "io.micrometer:micrometer-core",
"ecosystem": "Maven"
},
"database_specific": {
"last_known_affected_version_range": "<= 1.15.11"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "1.14.0"
},
{
"last_affected": "1.14.14"
}
]
}
],
"package": {
"name": "io.micrometer:micrometer-core",
"ecosystem": "Maven"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "1.10.0"
},
{
"last_affected": "1.13.15"
}
]
}
],
"package": {
"name": "io.micrometer:micrometer-core",
"ecosystem": "Maven"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"last_affected": "1.9.17"
}
]
}
],
"package": {
"name": "io.micrometer:micrometer-core",
"ecosystem": "Maven"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "1.16.0"
},
{
"fixed": "1.16.6"
}
]
}
],
"package": {
"name": "io.micrometer:micrometer-jetty12",
"ecosystem": "Maven"
},
"database_specific": {
"last_known_affected_version_range": "<= 1.16.5"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "1.15.0"
},
{
"fixed": "1.15.12"
}
]
}
],
"package": {
"name": "io.micrometer:micrometer-jetty12",
"ecosystem": "Maven"
},
"database_specific": {
"last_known_affected_version_range": "<= 1.15.11"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "1.14.0"
},
{
"last_affected": "1.14.14"
}
]
}
],
"package": {
"name": "io.micrometer:micrometer-jetty12",
"ecosystem": "Maven"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"last_affected": "1.13.15"
}
]
}
],
"package": {
"name": "io.micrometer:micrometer-jetty12",
"ecosystem": "Maven"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "1.16.0"
},
{
"fixed": "1.16.6"
}
]
}
],
"package": {
"name": "io.micrometer:micrometer-jetty11",
"ecosystem": "Maven"
},
"database_specific": {
"last_known_affected_version_range": "<= 1.16.5"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "1.15.0"
},
{
"fixed": "1.15.12"
}
]
}
],
"package": {
"name": "io.micrometer:micrometer-jetty11",
"ecosystem": "Maven"
},
"database_specific": {
"last_known_affected_version_range": "<= 1.15.11"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "1.14.0"
},
{
"last_affected": "1.14.14"
}
]
}
],
"package": {
"name": "io.micrometer:micrometer-jetty11",
"ecosystem": "Maven"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"last_affected": "1.13.15"
}
]
}
],
"package": {
"name": "io.micrometer:micrometer-jetty11",
"ecosystem": "Maven"
}
}
],
"modified": "2026-09-02T15:34:08Z",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"published": "2026-06-09T06:31:56Z",
"references": [
{
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-40984",
"type": "ADVISORY"
},
{
"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/errata/RHSA-2026:62260",
"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": "WEB"
},
{
"url": "https://github.com/micrometer-metrics/micrometer",
"type": "PACKAGE"
},
{
"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",
"type": "WEB"
}
],
"schema_version": "1.4.0",
"database_specific": {
"cwe_ids": [
"CWE-400",
"CWE-770"
],
"severity": "HIGH",
"github_reviewed": true,
"nvd_published_at": "2026-06-09T05:16:34Z",
"github_reviewed_at": "2026-08-06T19:10:08Z"
}
}