Vulnerabilities in pkg:maven/io.micrometer/micrometer-jetty11

PACKAGE
Advisory Identifier: GHSA-g3pr-3p32-fp23
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Advisory Summary

CVE-2026-40984 is a HIGH (CVSS 7.5) denial of service vulnerability (CWE-400: Uncontrolled Resource Consumption) affecting Micrometer core libraries in the Maven ecosystem. The issue involves micrometer http server instrumentations dos. Remediation is available by upgrading affected packages to version 1.16.6, 1.15.12.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:maven/io.micrometer/micrometer-jetty11

1 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:maven/io.micrometer/micrometer-jetty11. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-g3pr-3p32-fp23 CVE-2026-40984 HIGH Micrometer HTTP server instrumentations DoS

CVE-2026-40984 at a Glance

CVE Identifier CVE-2026-40984
GHSA Identifier GHSA-g3pr-3p32-fp23
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-400: Uncontrolled Resource Consumption
Affected Product Micrometer core
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2026-40984

To remediate this vulnerability, upgrade all affected Micrometer core dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

io.micrometer:micrometer-core fixed: 1.16.6 
<dependency>
    <groupId>io.micrometer</groupId>
    <artifactId>micrometer-core</artifactId>
    <version>1.16.6</version>
</dependency>
io.micrometer:micrometer-core fixed: 1.15.12 
<dependency>
    <groupId>io.micrometer</groupId>
    <artifactId>micrometer-core</artifactId>
    <version>1.15.12</version>
</dependency>
io.micrometer:micrometer-core fixed: Latest secure release 
<dependency>
    <groupId>io.micrometer</groupId>
    <artifactId>micrometer-core</artifactId>
    <version>Latest secure release</version>
</dependency>
io.micrometer:micrometer-core fixed: Latest secure release 
<dependency>
    <groupId>io.micrometer</groupId>
    <artifactId>micrometer-core</artifactId>
    <version>Latest secure release</version>
</dependency>
io.micrometer:micrometer-core fixed: Latest secure release 
<dependency>
    <groupId>io.micrometer</groupId>
    <artifactId>micrometer-core</artifactId>
    <version>Latest secure release</version>
</dependency>
io.micrometer:micrometer-jetty12 fixed: 1.16.6 
<dependency>
    <groupId>io.micrometer</groupId>
    <artifactId>micrometer-jetty12</artifactId>
    <version>1.16.6</version>
</dependency>
io.micrometer:micrometer-jetty12 fixed: 1.15.12 
<dependency>
    <groupId>io.micrometer</groupId>
    <artifactId>micrometer-jetty12</artifactId>
    <version>1.15.12</version>
</dependency>
io.micrometer:micrometer-jetty12 fixed: Latest secure release 
<dependency>
    <groupId>io.micrometer</groupId>
    <artifactId>micrometer-jetty12</artifactId>
    <version>Latest secure release</version>
</dependency>
io.micrometer:micrometer-jetty12 fixed: Latest secure release 
<dependency>
    <groupId>io.micrometer</groupId>
    <artifactId>micrometer-jetty12</artifactId>
    <version>Latest secure release</version>
</dependency>
io.micrometer:micrometer-jetty11 fixed: 1.16.6 
<dependency>
    <groupId>io.micrometer</groupId>
    <artifactId>micrometer-jetty11</artifactId>
    <version>1.16.6</version>
</dependency>
io.micrometer:micrometer-jetty11 fixed: 1.15.12 
<dependency>
    <groupId>io.micrometer</groupId>
    <artifactId>micrometer-jetty11</artifactId>
    <version>1.15.12</version>
</dependency>
io.micrometer:micrometer-jetty11 fixed: Latest secure release 
<dependency>
    <groupId>io.micrometer</groupId>
    <artifactId>micrometer-jetty11</artifactId>
    <version>Latest secure release</version>
</dependency>
io.micrometer:micrometer-jetty11 fixed: Latest secure release 
<dependency>
    <groupId>io.micrometer</groupId>
    <artifactId>micrometer-jetty11</artifactId>
    <version>Latest secure release</version>
</dependency>
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree -Dincludes=io.micrometer

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-40984, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=io.micrometer

Analyze the terminal output to locate any version of Micrometer core in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.16.6), your application is affected.

Note: The mvn dependency:tree -Dincludes=io.micrometer command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-400: Uncontrolled Resource Consumption, where the product does not properly control the allocation and maintenance of a limited resource. In Micrometer core, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

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.

CVE-2026-40984 Affected Micrometer core Versions

13 component(s)
Fixed Versions:
1.16.61.15.12
Product / Package Ecosystem Affected Versions Fixed Version
io.micrometer:micrometer-core
maven/io.micrometer/micrometer-core
Maven
≥ 1.16.0
< 1.16.6
1.16.6
io.micrometer:micrometer-core
maven/io.micrometer/micrometer-core
Maven
≥ 1.15.0
< 1.15.12
1.15.12
io.micrometer:micrometer-core
maven/io.micrometer/micrometer-core
Maven
≥ 1.14.0
≤ 1.14.14
io.micrometer:micrometer-core
maven/io.micrometer/micrometer-core
Maven
≥ 1.10.0
≤ 1.13.15
io.micrometer:micrometer-core
maven/io.micrometer/micrometer-core
Maven
≤ 1.9.17
io.micrometer:micrometer-jetty12
maven/io.micrometer/micrometer-jetty12
Maven
≥ 1.16.0
< 1.16.6
1.16.6
io.micrometer:micrometer-jetty12
maven/io.micrometer/micrometer-jetty12
Maven
≥ 1.15.0
< 1.15.12
1.15.12
io.micrometer:micrometer-jetty12
maven/io.micrometer/micrometer-jetty12
Maven
≥ 1.14.0
≤ 1.14.14
io.micrometer:micrometer-jetty12
maven/io.micrometer/micrometer-jetty12
Maven
≤ 1.13.15
io.micrometer:micrometer-jetty11
maven/io.micrometer/micrometer-jetty11
Maven
≥ 1.16.0
< 1.16.6
1.16.6
io.micrometer:micrometer-jetty11
maven/io.micrometer/micrometer-jetty11
Maven
≥ 1.15.0
< 1.15.12
1.15.12
io.micrometer:micrometer-jetty11
maven/io.micrometer/micrometer-jetty11
Maven
≥ 1.14.0
≤ 1.14.14
io.micrometer:micrometer-jetty11
maven/io.micrometer/micrometer-jetty11
Maven
≤ 1.13.15

References

NVD — CVE-2026-40984 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-40984
Security Fix Commit FIX COMMIT
https://github.com/micrometer-metrics/micrometer/commit/36da131525228188a36779a28471a76c79213dd4
access.redhat.com/errata/rhsa-2026:36... WEB
https://access.redhat.com/errata/RHSA-2026:36839
access.redhat.com/errata/rhsa-2026:37... WEB
https://access.redhat.com/errata/RHSA-2026:37390
access.redhat.com/errata/rhsa-2026:41... WEB
https://access.redhat.com/errata/RHSA-2026:41951
access.redhat.com/errata/rhsa-2026:50... WEB
https://access.redhat.com/errata/RHSA-2026:50848
access.redhat.com/errata/rhsa-2026:50... WEB
https://access.redhat.com/errata/RHSA-2026:50849
access.redhat.com/errata/rhsa-2026:54... WEB
https://access.redhat.com/errata/RHSA-2026:54435
access.redhat.com/errata/rhsa-2026:62... WEB
https://access.redhat.com/errata/RHSA-2026:62260
access.redhat.com/errata/rhsa-2026:66... WEB
https://access.redhat.com/errata/RHSA-2026:66488
access.redhat.com/errata/rhsa-2026:66... WEB
https://access.redhat.com/errata/RHSA-2026:66545
Micrometer core Security Information SECURITY
https://access.redhat.com/security/cve/CVE-2026-40984
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=2486716
Micrometer core Source Repository REPOSITORY
https://github.com/micrometer-metrics/micrometer
Micrometer core Security Information SECURITY
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-40984.json
Micrometer core Security Information SECURITY
https://spring.io/security/cve-2026-40984

Frequently Asked Questions

What is CVE-2026-40984?
CVE-2026-40984 is a security vulnerability in Micrometer core involving Micrometer HTTP server instrumentations DoS under CWE-400: Uncontrolled Resource Consumption.
Which Micrometer core versions are affected?
Affected versions include releases prior to 1.16.6, 1.15.12 across affected packages: io.micrometer:micrometer-core, io.micrometer:micrometer-jetty12, io.micrometer:micrometer-jetty11.
What version fixes CVE-2026-40984?
Upgrading to 1.16.6, 1.15.12 (or the latest patched release for your respective branch) resolves the vulnerability.
Is micrometer-core affected?
Yes, io.micrometer:micrometer-core is affected in releases prior to 1.16.6, 1.15.12, Latest secure release. Upgrade your dependency to 1.16.6, 1.15.12, Latest secure release or later.
Is micrometer-jetty12 affected?
Yes, io.micrometer:micrometer-jetty12 is affected in releases prior to 1.16.6, 1.15.12, Latest secure release. Upgrade your dependency to 1.16.6, 1.15.12, Latest secure release or later.
What is the CVSS score of CVE-2026-40984?
CVE-2026-40984 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2026-40984?
CVE-2026-40984 is classified under CWE-400: Uncontrolled Resource Consumption (The product does not properly control the allocation and maintenance of a limited resource.).
How can I check Maven dependencies for CVE-2026-40984?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=io.micrometer'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-g3pr-3p32-fp23",
  "modified" : "2026-09-11T15:32:18Z",
  "published" : "2026-06-09T06:31:56Z",
  "aliases" : [ "CVE-2026-40984" ],
  "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.\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.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "io.micrometer:micrometer-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.16.0"
      }, {
        "fixed" : "1.16.6"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 1.16.5"
    }
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "io.micrometer:micrometer-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.15.0"
      }, {
        "fixed" : "1.15.12"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 1.15.11"
    }
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "io.micrometer:micrometer-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.14.0"
      }, {
        "last_affected" : "1.14.14"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "io.micrometer:micrometer-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.10.0"
      }, {
        "last_affected" : "1.13.15"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "io.micrometer:micrometer-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "1.9.17"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "io.micrometer:micrometer-jetty12"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.16.0"
      }, {
        "fixed" : "1.16.6"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 1.16.5"
    }
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "io.micrometer:micrometer-jetty12"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.15.0"
      }, {
        "fixed" : "1.15.12"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 1.15.11"
    }
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "io.micrometer:micrometer-jetty12"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.14.0"
      }, {
        "last_affected" : "1.14.14"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "io.micrometer:micrometer-jetty12"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "1.13.15"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "io.micrometer:micrometer-jetty11"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.16.0"
      }, {
        "fixed" : "1.16.6"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 1.16.5"
    }
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "io.micrometer:micrometer-jetty11"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.15.0"
      }, {
        "fixed" : "1.15.12"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 1.15.11"
    }
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "io.micrometer:micrometer-jetty11"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.14.0"
      }, {
        "last_affected" : "1.14.14"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "io.micrometer:micrometer-jetty11"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "1.13.15"
      } ]
    } ]
  } ],
  "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/errata/RHSA-2026:62260"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2026:66488"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2026:66545"
  }, {
    "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"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-400", "CWE-770" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-08-06T19:10:08Z",
    "nvd_published_at" : "2026-06-09T05:16:34Z"
  }
}