Allocation of Resources Without Limits or Throttling Affecting io.micronaut:micronaut-inject package, versions [4.3.0,4.10.22)[5.0.0-M1,5.0.0-M25)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
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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- published7 May 2026
- disclosed6 May 2026
- creditUnknown
Introduced: 6 May 2026
CVE-2026-44242 (opens in a new tab)How to fix?
Upgrade io.micronaut:micronaut-inject to version 4.10.22, 5.0.0-M25 or higher.
Overview
Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling through the unbounded bundleCache in ResourceBundleMessageSource. An attacker can cause memory exhaustion and degrade service availability by sending numerous HTTP requests with unique Accept-Language headers, each triggering a new cache entry.
Note:
This is only exploitable if the application explicitly registers a ResourceBundleMessageSource bean and serves HTML error responses.