CVE-2026-44241

Micronaut Framework is a JVM-based full stack Java framework designed for building modular, easily testable JVM applications. From 4.3.0 to before 4.10.22, TimeConverterRegistrar caches DateTimeFormatter instances in an unbounded ConcurrentHashMap whose key is derived from the @Format annotation...

CVE-2026-44241 Micronaut Framework: Unbounded formattersCache in TimeConverterRegistrar 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. From 4.3.0 to before 4.10.22, 3.10.6, and 3.8.14, TimeConverterRegistrar caches DateTimeFormatter instances in an unbounded ConcurrentHashMap whose key is derived from the...

CVE-2026-44241

Summary of CVE-2026-44241 (Micronaut Framework) Affected: Micronaut Core versions 4.3.0–4.10.21 (fixed in 4.10.22). A cache in TimeConverterRegistrar stores DateTimeFormatter instances in an unbounded ConcurrentHashMap keyed by pattern+Locale derived from the @Format annotation and the HTTP Accep...

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...

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...

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

CVE-2026-44242 affects Micronaut Framework when a non-default ResourceBundleMessageSource bean is registered. The bundleCache is a ConcurrentHashMap unbounded by design, allowing an attacker to flood the server with unique Accept-Language headers (while requesting HTML error responses), creating ...

CVE-2026-44241: Uncontrolled Resource Consumption

Micronaut Framework is a JVM-based full stack Java framework designed for building modular, easily testable JVM applications. From 4.3.0 to before 4.10.22, 3.10.6, and 3.8.14, TimeConverterRegistrar caches DateTimeFormatter instances in an unbounded ConcurrentHashMap whose key is derived from the...

CVE-2026-44242: Uncontrolled Resource Consumption

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 Resource Management Vulnerability

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...

CLSA-2026-1778152899 httpd: Fix of 2 CVEs

CVE-2017-15710: modauthnzldap out-of-bounds write when accept-language header value is shorter than two characters - CVE-2017-15715: regex anchor in / can match before an embedded newline, allowing .htaccess bypass of trailing-extension filters...

httpd: Fix of 2 CVEs

CVE-2017-15710: modauthnzldap out-of-bounds write when accept-language header value is shorter than two characters - CVE-2017-15715: regex anchor in / can match before an embedded newline, allowing .htaccess bypass of trailing-extension filters...

CLSA-2026-1778178379 httpd: Fix of 2 CVEs

CVE-2017-15710: modauthnzldap out-of-bounds write when accept-language header value is shorter than two characters - CVE-2017-15715: regex anchor in / can match before an embedded newline, allowing .htaccess bypass of trailing-extension filters...

GHSA-8HJV-92Q9-G4XJ Micronaut has unbounded `formattersCache` in `TimeConverterRegistrar` that Allows Memory Exhaustion via `Accept-Language` Header

Summary TimeConverterRegistrar caches DateTimeFormatter instances in an unbounded ConcurrentHashMap whose key is derived from the @Format annotation pattern concatenated with the locale from the HTTP Accept-Language header. Because Locale.forLanguageTag accepts arbitrary BCP 47 private-use...

Micronaut has unbounded `formattersCache` in `TimeConverterRegistrar` that Allows Memory Exhaustion via `Accept-Language` Header

Summary TimeConverterRegistrar caches DateTimeFormatter instances in an unbounded ConcurrentHashMap whose key is derived from the @Format annotation pattern concatenated with the locale from the HTTP Accept-Language header. Because Locale.forLanguageTag accepts arbitrary BCP 47 private-use...

Allocation of Resources Without Limits or Throttling

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 uniqu...

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...

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...