Title: Apache MINA de Apache Software Foundation, Description: ZDRES-232: resolveProxyClass no anulado - Omisión del filtro acceptMatchers mediante java.lang.reflect.Proxy

Evaluación: Completamente abordado.

Cuando el flujo serializado contiene un TC_PROXYCLASSDESC (el marcador para un java.lang.reflect.Proxy), se despacha ObjectInputStream.readProxyDesc() del JDK. El JDK luego llama a la implementación predeterminada de ObjectInputStream.resolveProxyClass(interfaces), que realiza Class.forName(intf, false, latestUserDefinedLoader()) para CADA nombre de interfaz y construye la clase proxy, omitiendo la lista de clases aceptadas.

ZDRES-233: Class.forName(name, initialize=true, classLoader) en readClassDescriptor activa el inicializador estático de clases en la lista de permitidos

Evaluación: Completamente abordado.

Para CUALQUIER clase en la lista de permitidos, la deserialización de un flujo que la nombra activa el (inicializador estático) de la clase ANTES de que se construya cualquier instancia. Esto significa que un atacante que proporciona un nombre de clase en la lista de permitidos (por ejemplo, el desarrollador escribió accept('com.myapp.*'), el atacante proporciona com.myapp.SomeClass) causa <clinit> de SomeClass, y muchas clases del mundo real tienen inicializadores estáticos con efectos secundarios.

Ambos problemas han sido solucionados.

OR
          *cpe:2.3:a:apache:mina:2.0.29:*:*:*:*:*:*:*
          *cpe:2.3:a:apache:mina:2.1.13:*:*:*:*:*:*:*
          *cpe:2.3:a:apache:mina:2.2.8:*:*:*:*:*:*:*

Apache Software Foundation: https://lists.apache.org/thread/y7xj1bl8qo47p9bktb11hg5v6k1d4dyj Types: Mailing List, Vendor Advisory

{"timestamp":"2026-06-03T00:00:00+00:00","id":"CVE-2026-47065","options":[{"exploitation":"none"},{"automatable":"yes"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}

[{"vendor":"Apache Software Foundation","product":"Apache MINA","defaultStatus":"unaffected","collectionURL":"https://repo.maven.apache.org/maven2/org/apache/mina","packageName":"org.apache.mina:mina-core","versions":[{"version":"2.2.0","lessThan":"2.2.8","versionType":"semver","status":"affected"},{"version":"2.1.0","lessThan":"2.1.13","versionType":"semver","status":"affected"},{"version":"2.0.0","lessThan":"2.0.29","versionType":"semver","status":"affected"}]}]

ZDRES-232: resolveProxyClass Not Overridden - acceptMatchers Filter Bypass via java.lang.reflect.Proxy


Assessment: Fully addressed.


When the serialised stream contains a TC_PROXYCLASSDESC (the marker 
for a java.lang.reflect.Proxy ), JDK’s ObjectInputStream.readProxyDesc()
 is
dispatched. JDK then calls the default 
ObjectInputStream.resolveProxyClass(interfaces) implementation, which 
performs Class.forName(intf, false, latestUserDefinedLoader()) for EACH 
interface name and constructs the proxy class — bypassing the accepted
 classes list .


ZDRES-233: Class.forName(name, initialize=true, classLoader) in 
readClassDescriptor Triggers Static Initialiser of Allow-Listed Classes


Assessment: Fully addressed.


For ANY class on the allow-list, deserialising a stream that names it triggers the class’s 
 (static initialiser) BEFORE any instance is constructed. This means an 
attacker who supplies a class name on the allow-list (e.g., the 
developer wrote accept(“com.myapp.*") , attacker supplies 
com.myapp.SomeClass ) causes <clinit> of SomeClass — and many 
real-world classes have side-effecting static initialisers


Both issues have been fixed.

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE-502

https://lists.apache.org/thread/y7xj1bl8qo47p9bktb11hg5v6k1d4dyj