cve-2026-47880 - MEDIUM - DefaultJmsHeaderMapper copies all JMS user properties into MessageHeaders without excluding framework-significant names

A producer who can publish to a JMS destination consumed by any Spring Integration JMS inbound component can set String JMS properties named replyChannel , errorChannel , or json__TypeId__ which are copied verbatim into the Spring Integration MessageHeaders . Downstream framework code ( AbstractMessageProducingHandler.sendOutput , MessagePublishingErrorHandler.resolveErrorChannel ) resolves a String replyChannel / errorChannel header to a Spring bean via BeanFactoryChannelResolver , allowing the attacker to redirect handler output or error messages to any MessageChannel bean in the applicatio…

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