CVE-2026-409847.5HighCWE-400

CVE-2026-40984: Micrometer HTTP server instrumentations DoS vulnerability

Spring · Micrometer

Vendor fix available · Affected: Spring Micrometer · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

0.8%probability of exploitation in the next 30 days

56th percentile

050100

Higher than 56% of scored CVEs

7.5HighCVSS 3.1

LowMediumHighCrit.

DescriptionCVE.org

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 products3

From the CVE record. A product or version that is not listed is unknown, not unaffected.

Spring · Micrometerfrom 1.16.0 before 1.16.5.1; from 1.15.0 before 1.15.11.1; from 1.14.0 before 1.14.16; from 1.13.0 before 1.13.19; from 1.9.0 before 1.9.18
Spring · Micrometerfrom 1.16.0 before 1.16.5.1; from 1.15.0 before 1.15.11.1; from 1.14.0 before 1.14.16; from 1.13.0 before 1.13.19
Spring · Micrometerfrom 1.16.0 before 1.16.6; from 1.15.0 before 1.15.11.; from 1.14.0 before 1.14.15.1; from 1.13.0 before 1.13.19

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas

Exploitation: Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Uncontrolled Resource Consumption · Denial of Service
Vendor: Spring
Published: June 2026
Band: Unlikely (under 1%), June 2026

CoverageNo articles yet

No CyberSIXT article names CVE-2026-40984 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.

References

1 more reference is in the CVE record.