Vmware Spring Micrometer up to 1.16.5 HTTP resource consumption

Summaryinfo

A vulnerability marked as problematic has been reported in Vmware Spring Micrometer up to 1.9.17/1.13.18/1.14.15/1.15.11/1.16.5. Impacted is an unknown function of the component HTTP Handler. Performing a manipulation results in resource consumption. This vulnerability is cataloged as CVE-2026-40984. It is possible to initiate the attack remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Vmware Spring Micrometer up to 1.9.17/1.13.18/1.14.15/1.15.11/1.16.5. It has been classified as problematic. This affects an unknown code of the component HTTP Handler. The manipulation with an unknown input leads to a resource consumption vulnerability. CWE is classifying the issue as CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. This is going to have an impact on availability. The summary by CVE is:

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.

The advisory is shared at spring.io. This vulnerability is uniquely identified as CVE-2026-40984 since 04/16/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/09/2026). MITRE ATT&CK project uses the attack technique T1499 for this issue.

Upgrading to version 1.9.18, 1.13.19, 1.14.16, 1.15.12 or 1.16.6 eliminates this vulnerability.

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Productinfo

Vendor

• Vmware

Name

• Spring Micrometer

Version

• 1.9.0
• 1.9.1
• 1.9.2
• 1.9.3
• 1.9.4
• 1.9.5
• 1.9.6
• 1.9.7
• 1.9.8
• 1.9.9
• 1.9.10
• 1.9.11
• 1.9.12
• 1.9.13
• 1.9.14
• 1.9.15
• 1.9.16
• 1.9.17
• 1.13.0
• 1.13.1
• 1.13.2
• 1.13.3
• 1.13.4
• 1.13.5
• 1.13.6
• 1.13.7
• 1.13.8
• 1.13.9
• 1.13.10
• 1.13.11
• 1.13.12
• 1.13.13
• 1.13.14
• 1.13.15
• 1.13.16
• 1.13.17
• 1.13.18
• 1.14.0
• 1.14.1
• 1.14.2
• 1.14.3
• 1.14.4
• 1.14.5
• 1.14.6
• 1.14.7
• 1.14.8
• 1.14.9
• 1.14.10
• 1.14.11
• 1.14.12
• 1.14.13
• 1.14.14
• 1.14.15
• 1.15.0
• 1.15.1
• 1.15.2
• 1.15.3
• 1.15.4
• 1.15.5
• 1.15.6
• 1.15.7
• 1.15.8
• 1.15.9
• 1.15.10
• 1.15.11
• 1.16.0
• 1.16.1
• 1.16.2
• 1.16.3
• 1.16.4
• 1.16.5

License

• commercial

Website

• Vendor: https://www.vmware.com/

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