Security Advisory

CVE-2026-44242

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-05-12 21:17:52

Last updated 2026-05-13 14:55:43

Assigner GitHub_M

CVSS score 3.7

State PUBLISHED

Description

Micronaut Framework is a JVM-based full stack Java framework designed for building modular, easily testable JVM applications. Prior to 4.10.22, the bundleCache is keyed by (Locale, baseName) where the locale originates from the HTTP Accept-Language header. In applications that explicitly register a ResourceBundleMessageSource bean and serve HTML error responses, an unauthenticated attacker can exhaust heap memory by sending requests with large numbers of unique Accept-Language values, each causing a new entry in the unbounded bundleCache. This vulnerability is fixed in 4.10.22.

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