diff --git a/mysql-test/main/func_json.result b/mysql-test/main/func_json.result
index a549cb73291e0..b68d73c0f5e5a 100644
--- a/mysql-test/main/func_json.result
+++ b/mysql-test/main/func_json.result
@@ -5764,4 +5764,16 @@ NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL
 {"key": "value", "key2": "value2"}	1	0	0	1	0	1	1
 {"key": "value", "key": "value2"}	1	0	0	1	0	0	1
 DROP TABLE test_default_json;
+SELECT json_extract(t.j, '$')
+FROM (SELECT json_extract('["a",1]', '$') AS j) AS t;
+json_extract(t.j, '$')
+["a", 1]
+SELECT json_extract(t.j, '$[0]')
+FROM (SELECT json_extract('["a",1]', '$') AS j) AS t;
+json_extract(t.j, '$[0]')
+"a"
+SELECT json_extract(t.j, '$')
+FROM (SELECT json_extract('{"key":"value"}', '$') AS j) AS t;
+json_extract(t.j, '$')
+{"key": "value"}
 # End of 12.3
diff --git a/mysql-test/main/func_json.test b/mysql-test/main/func_json.test
index 13be0f591e5ce..81801312530ed 100644
--- a/mysql-test/main/func_json.test
+++ b/mysql-test/main/func_json.test
@@ -4489,4 +4489,13 @@ FROM test_default_json;
 
 DROP TABLE test_default_json;
 
+SELECT json_extract(t.j, '$')
+FROM (SELECT json_extract('["a",1]', '$') AS j) AS t;
+
+SELECT json_extract(t.j, '$[0]')
+FROM (SELECT json_extract('["a",1]', '$') AS j) AS t;
+
+SELECT json_extract(t.j, '$')
+FROM (SELECT json_extract('{"key":"value"}', '$') AS j) AS t;
+
 --echo # End of 12.3
diff --git a/sql/item_jsonfunc.cc b/sql/item_jsonfunc.cc
index 62c003091d42b..3ffca3fc44e62 100644
--- a/sql/item_jsonfunc.cc
+++ b/sql/item_jsonfunc.cc
@@ -1139,7 +1139,12 @@ bool Item_json_str_multipath::fix_length_and_dec(THD *thd)
 bool Item_func_json_extract::fix_length_and_dec(THD *thd)
 {
   collation.set(args[0]->collation);
-  max_length= args[0]->max_length * (arg_count - 1);
+  /*
+    json_extract() passes its result through json_nice() with LOOSE format,
+    which can expand the output (e.g. adding spaces after commas and colons).
+    Multiply by 2 to account for this, matching JSON_FORMAT(LOOSE) behavior.
+  */
+  max_length= args[0]->max_length * (arg_count - 1) * 2;
 
   mark_constant_paths(paths, args+1, arg_count-1);
   set_maybe_null();