Allocation of Resources Without Limits or Throttling Affecting io.micrometer:micrometer-core package, versions [1.9.0,1.15.12)[1.16.0-M1,1.16.6)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published9 Jun 2026
- disclosed8 Jun 2026
- creditYu Bao (@August829) - yubao@paypal.com
Introduced: 8 Jun 2026
CVE-2026-40984 (opens in a new tab)How to fix?
Upgrade io.micrometer:micrometer-core to version 1.15.12, 1.16.6 or higher.
Overview
Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via HTTP server metrics instrumentation in Micrometer. An attacker can cause denial of service by sending specially crafted HTTP requests that trigger excessive resource consumption during metrics collection and processing. Repeated requests can degrade application performance and potentially render the service unavailable.
Note: This is only exploitable if the application has one or more HTTP server instrumentations enabled with metrics collection configured.