diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8ff5f8a9..3778bbd6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,7 @@
 Version 261:
 
 * Deduplicate `websocket::read_size_hint` definition
+* Fix UB in websocket read tests
 
 --------------------------------------------------------------------------------
 
diff --git a/test/beast/websocket/read2.cpp b/test/beast/websocket/read2.cpp
index 0b1bb230..0f211fcf 100644
--- a/test/beast/websocket/read2.cpp
+++ b/test/beast/websocket/read2.cpp
@@ -133,7 +133,7 @@ public:
         [&](ws_type_t<deflateSupported>& ws)
         {
             put(ws.next_layer().buffer(), cbuf(
-                0x89, 0x00));
+                {0x89, 0x00}));
             bool invoked = false;
             ws.control_callback(
                 [&](frame_type kind, string_view)
@@ -155,7 +155,7 @@ public:
         [&](ws_type_t<deflateSupported>& ws)
         {
             put(ws.next_layer().buffer(), cbuf(
-                0x88, 0x00));
+                {0x88, 0x00}));
             bool invoked = false;
             ws.control_callback(
                 [&](frame_type kind, string_view)
@@ -313,7 +313,7 @@ public:
         [&](ws_type_t<deflateSupported>& ws)
         {
             w.write_raw(ws, cbuf(
-                0x8f, 0x80, 0xff, 0xff, 0xff, 0xff));
+                {0x8f, 0x80, 0xff, 0xff, 0xff, 0xff}));
             doReadTest(w, ws, close_code::protocol_error);
         });
 
@@ -322,7 +322,7 @@ public:
         [&](ws_type_t<deflateSupported>& ws)
         {
             put(ws.next_layer().buffer(), cbuf(
-                0x88, 0x02, 0x03, 0xed));
+                {0x88, 0x02, 0x03, 0xed}));
             doFailTest(w, ws, error::bad_close_code);
         });
 
@@ -332,8 +332,8 @@ public:
         {
             w.write_some(ws, false, sbuf("*"));
             w.write_raw(ws, cbuf(
-                0x80, 0xff, 0xff, 0xff, 0xff, 0xff,
-                0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff));
+                {0x80, 0xff, 0xff, 0xff, 0xff, 0xff,
+                0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}));
             doReadTest(w, ws, close_code::too_big);
         });
 
@@ -351,7 +351,7 @@ public:
         [&](ws_type_t<deflateSupported>& ws)
         {
             put(ws.next_layer().buffer(), cbuf(
-                0x81, 0x06, 0x03, 0xea, 0xf0, 0x28, 0x8c, 0xbc));
+                {0x81, 0x06, 0x03, 0xea, 0xf0, 0x28, 0x8c, 0xbc}));
             doFailTest(w, ws, error::bad_frame_payload);
         });
 
diff --git a/test/beast/websocket/test.hpp b/test/beast/websocket/test.hpp
index 0ab27c1b..b4c90d2b 100644
--- a/test/beast/websocket/test.hpp
+++ b/test/beast/websocket/test.hpp
@@ -12,7 +12,6 @@
 
 #include <boost/beast/core/bind_handler.hpp>
 #include <boost/beast/core/buffer_traits.hpp>
-#include <boost/beast/core/buffers_prefix.hpp>
 #include <boost/beast/core/buffers_to_string.hpp>
 #include <boost/beast/core/ostream.hpp>
 #include <boost/beast/core/multi_buffer.hpp>
@@ -22,9 +21,7 @@
 #include <boost/beast/_experimental/unit_test/suite.hpp>
 #include <boost/asio/executor_work_guard.hpp>
 #include <boost/asio/io_context.hpp>
-#include <boost/asio/spawn.hpp>
 #include <boost/optional.hpp>
-#include <array>
 #include <cstdlib>
 #include <memory>
 #include <random>
@@ -377,42 +374,9 @@ public:
 
     //--------------------------------------------------------------------------
 
-    template<std::size_t N>
-    class cbuf_helper
+    net::const_buffer cbuf(std::initializer_list<std::uint8_t> bytes)
     {
-        std::array<std::uint8_t, N> v_;
-        net::const_buffer cb_;
-
-    public:
-        using value_type = decltype(cb_);
-        using const_iterator = value_type const*;
-
-        template<class... Vn>
-        explicit
-        cbuf_helper(Vn... vn)
-            : v_({{ static_cast<std::uint8_t>(vn)... }})
-            , cb_(v_.data(), v_.size())
-        {
-        }
-
-        const_iterator
-        begin() const
-        {
-            return &cb_;
-        }
-
-        const_iterator
-        end() const
-        {
-            return begin()+1;
-        }
-    };
-
-    template<class... Vn>
-    cbuf_helper<sizeof...(Vn)>
-    cbuf(Vn... vn)
-    {
-        return cbuf_helper<sizeof...(Vn)>(vn...);
+        return {bytes.begin(), bytes.size()};
     }
 
     template<std::size_t N>