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Vulnerability · Published Jun 9, 2026 · Assigned by vmware

CVE-2026-40984Micrometer HTTP server instrumentations DoS vulnerability

High 7.5

In plain English

A high-severity uncontrolled resource consumption in Micrometer from Spring. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 57% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.8%top 43.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Mavenio.micrometer:micrometer-core1.16.6GHSA-g3pr-3p32-fp23
Mavenio.micrometer:micrometer-core1.15.12GHSA-g3pr-3p32-fp23
Mavenio.micrometer:micrometer-coreno fix listedGHSA-g3pr-3p32-fp23
Mavenio.micrometer:micrometer-coreno fix listedGHSA-g3pr-3p32-fp23
Mavenio.micrometer:micrometer-coreno fix listedGHSA-g3pr-3p32-fp23
Mavenio.micrometer:micrometer-jetty11no fix listedGHSA-g3pr-3p32-fp23
Mavenio.micrometer:micrometer-jetty111.16.6GHSA-g3pr-3p32-fp23
Mavenio.micrometer:micrometer-jetty111.15.12GHSA-g3pr-3p32-fp23
Mavenio.micrometer:micrometer-jetty11no fix listedGHSA-g3pr-3p32-fp23
Mavenio.micrometer:micrometer-jetty121.16.6GHSA-g3pr-3p32-fp23
Mavenio.micrometer:micrometer-jetty121.15.12GHSA-g3pr-3p32-fp23
Mavenio.micrometer:micrometer-jetty12no fix listedGHSA-g3pr-3p32-fp23
Mavenio.micrometer:micrometer-jetty12no fix listedGHSA-g3pr-3p32-fp23

Affected products (as reported)

VendorProductVersions
Spring Micrometer 1.16.0 – before 1.16.5.11.15.0 – before 1.15.11.11.14.0 – before 1.14.161.13.0 – before 1.13.191.9.0 – before 1.9.18
Spring Micrometer 1.16.0 – before 1.16.5.11.15.0 – before 1.15.11.11.14.0 – before 1.14.161.13.0 – before 1.13.19
Spring Micrometer 1.16.0 – before 1.16.61.15.0 – before 1.15.11.1.14.0 – before 1.14.15.11.13.0 – before 1.13.19

Weakness: CWE-400, CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References