CAMEL-23621: filter tool argument headers against declared parameters (4.18.x backport)#23551
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Backport of apache#23535 to camel-4.18.x. Filters LLM tool argument field names against the tool's declared parameter schema before setting them as Exchange headers, preventing prompt-injection attacks from injecting arbitrary Camel control headers. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
oscerd
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May 27, 2026
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Summary
Backport of #23535 to
camel-4.18.x.camel-langchain4j-tools,camel-langchain4j-agent, andcamel-spring-ai-toolsJsonNodeheader values incamel-langchain4j-agent(now properly extracts Java primitives)This is a security hardening measure to prevent prompt-injection attacks from injecting arbitrary Camel control headers (such as
CamelFileName,CamelSqlQuery,CamelHttpUri) via crafted tool call arguments.Test plan
LangChain4jToolTest.testUndeclaredToolArgumentsAreNotPropagatedAsHeaders— verifies undeclared args are blockedcamel-langchain4j-agentmodule compiles successfullyClaude Code on behalf of Federico Mariani