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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00422.

Exploitation none

Automatable yes

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Spring Micrometer unaffected
Version Status Constraints
1.16.0 affected < 1.16.6
1.15.0 affected < 1.15.12
1.14.0 affected < 1.14.16
1.13.0 affected < 1.13.19
1.9.0 affected < 1.9.18
Spring Micrometer unaffected
Version Status Constraints
1.16.0 affected < 1.16.6
1.15.0 affected < 1.15.12
1.14.0 affected < 1.14.16
1.13.0 affected < 1.13.19
Spring Micrometer unaffected
Version Status Constraints
1.16.0 affected < 1.16.6
1.15.0 affected < 1.15.12
1.14.0 affected < 1.14.16
1.13.0 affected < 1.13.19

No data.

No data.

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Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://spring.io/security/cve-2026-40984 cve-icon cve-icon
History

Tue, 09 Jun 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Tue, 09 Jun 2026 09:15:00 +0000

Type Values Removed Values Added
First Time appeared Spring
Spring micrometer
Vendors & Products Spring
Spring micrometer

Tue, 09 Jun 2026 04:45:00 +0000

Type Values Removed Values Added
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.
Title Micrometer HTTP server instrumentations DoS vulnerability
Weaknesses CWE-400
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: vmware

Published:

Updated: 2026-06-09T13:50:04.966Z

Reserved: 2026-04-16T02:19:09.388Z

Link: CVE-2026-40984

cve-icon Vulnrichment

Updated: 2026-06-09T13:49:59.796Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-06-09T05:16:34.780

Modified: 2026-06-09T13:49:39.993

Link: CVE-2026-40984

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-09T08:55:51Z

Weaknesses