CVE-2026-44242 Micronaut Framework: Unbounded bundleCache in ResourceBundleMessageSource Allows Memory Exhaustion via Accept-Language Header

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...

CVE-2026-44242

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...

Micronaut Framework 资源管理错误漏洞

The Micronaut Framework is a modern full-stack Java framework based on the JVM, developed by the Micronaut Foundation. Versions of the Micronaut Framework prior to 4.10.22 contained a resource management vulnerability. This vulnerability stemmed from the use of unbounded caching in the bundleCach...

Micronaut has Unbounded `bundleCache` in `ResourceBundleMessageSource` that Allows Memory Exhaustion via `Accept-Language` Header

Summary ResourceBundleMessageSource maintains two caches: messageCache bounded at 100 entries via ConcurrentLinkedHashMap and bundleCache unbounded ConcurrentHashMap. The bundleCache is keyed by Locale, baseName where the locale originates from the HTTP Accept-Language header. In applications tha...

GHSA-3RFQ-4WPF-QQW3 Micronaut has Unbounded `bundleCache` in `ResourceBundleMessageSource` that Allows Memory Exhaustion via `Accept-Language` Header

Summary ResourceBundleMessageSource maintains two caches: messageCache bounded at 100 entries via ConcurrentLinkedHashMap and bundleCache unbounded ConcurrentHashMap. The bundleCache is keyed by Locale, baseName where the locale originates from the HTTP Accept-Language header. In applications tha...

PT-2026-38293

Name of the Vulnerable Software and Affected Versions Micronaut Framework versions prior to 4.10.22 Description In applications that explicitly register a ResourceBundleMessageSource bean and serve HTML error responses, an unauthenticated attacker can cause heap memory exhaustion. This occurs...