diff --git a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/csv/CSVOptions.scala b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/csv/CSVOptions.scala
index 2e5539a90c65..b4b25a895016 100644
--- a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/csv/CSVOptions.scala
+++ b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/csv/CSVOptions.scala
@@ -212,6 +212,7 @@ class CSVOptions(
   val lineSeparatorInWrite: Option[String] = lineSeparator
 
   val inputBufferSize: Option[Int] = parameters.get("inputBufferSize").map(_.toInt)
+    .orElse(SQLConf.get.getConf(SQLConf.CSV_INPUT_BUFFER_SIZE))
 
   /**
    * The handling method to be used when unescaped quotes are found in the input.
diff --git a/sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala b/sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala
index 6317ef262696..f4c236c68dfe 100644
--- a/sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala
+++ b/sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala
@@ -2453,6 +2453,16 @@ object SQLConf {
     .booleanConf
     .createWithDefault(true)
 
+  val CSV_INPUT_BUFFER_SIZE = buildConf("spark.sql.csv.parser.inputBufferSize")
+    .internal()
+    .doc("If it is set, it configures the buffer size of CSV input during parsing. " +
+      "It is the same as inputBufferSize option in CSV which has a higher priority. " +
+      "Note that this is a workaround for the parsing library's regression, and this " +
+      "configuration is internal and supposed to be removed in the near future.")
+    .version("3.0.3")
+    .intConf
+    .createOptional
+
   val REPL_EAGER_EVAL_ENABLED = buildConf("spark.sql.repl.eagerEval.enabled")
     .doc("Enables eager evaluation or not. When true, the top K rows of Dataset will be " +
       "displayed if and only if the REPL supports the eager evaluation. Currently, the " +