diff --git a/src/test/fuzz/http_request.cpp b/src/test/fuzz/http_request.cpp
index c992edcd178..77c56ffe98f 100644
--- a/src/test/fuzz/http_request.cpp
+++ b/src/test/fuzz/http_request.cpp
@@ -45,6 +45,24 @@ FUZZ_TARGET(http_request)
     (void)http_request.GetHeader(header);
     (void)http_request.WriteHeader(std::string(header), fuzzed_data_provider.ConsumeRandomLengthString(16));
     (void)http_request.GetHeader(header);
+    // Reaching here means LoadControlData/LoadHeaders/LoadBody all succeeded, so the
+    // parsed body must be consistent with the message framing. Before libevent was
+    // replaced with http_bitcoin::HTTPRequest (#35182), ReadBody() always returned an
+    // empty string here; LoadBody now populates the body per RFC 9112 framing, so mirror
+    // its branch logic to assert the body matches the framing that produced it.
     const std::string body = http_request.ReadBody();
-    assert(body.empty());
+    const auto [has_transfer_encoding, transfer_encoding] = http_request.GetHeader("Transfer-Encoding");
+    const auto [has_content_length, content_length] = http_request.GetHeader("Content-Length");
+    if (has_transfer_encoding && ToLower(transfer_encoding) == "chunked") {
+        // A chunked body is the concatenation of the decoded chunks, bounded by MAX_BODY_SIZE.
+        assert(body.size() <= http_bitcoin::MAX_BODY_SIZE);
+    } else if (has_content_length) {
+        // A Content-Length body is exactly that many bytes.
+        const auto parsed_length{ToIntegral<uint64_t>(content_length)};
+        assert(parsed_length);
+        assert(body.size() == *parsed_length);
+    } else {
+        // Absent both framing headers there is no body.
+        assert(body.empty());
+    }
 }