nodejs
diff --git a/‎lib/readline.js‎
Lines changed: 5 additions & 0 deletions b/‎lib/readline.js‎
Lines changed: 5 additions & 0 deletions
diff --git a/‎test/parallel/test-readline-csi.js‎
Lines changed: 13 additions & 0 deletions b/‎test/parallel/test-readline-csi.js‎
Lines changed: 13 additions & 0 deletions
@@ -1236,6 +1236,11 @@ function cursorTo(stream, x, y, callback) {
     y = undefined;
   }
 
+  if (NumberIsNaN(x))
+    throw new ERR_INVALID_ARG_VALUE('x', x);
+  if (NumberIsNaN(y))
+    throw new ERR_INVALID_ARG_VALUE('y', y);
+
   if (stream == null || (typeof x !== 'number' && typeof y !== 'number')) {
     if (typeof callback === 'function')
       process.nextTick(callback, null);
 
@@ -161,3 +161,16 @@ assert.strictEqual(writable.data, '\x1b[2G');
 assert.throws(() => {
   readline.cursorTo(writable, 1, 1, null);
 }, /ERR_INVALID_CALLBACK/);
+
+// Verify that cursorTo() throws if x or y is NaN.
+assert.throws(() => {
+  readline.cursorTo(writable, NaN);
+}, /ERR_INVALID_ARG_VALUE/);
+
+assert.throws(() => {
+  readline.cursorTo(writable, 1, NaN);
+}, /ERR_INVALID_ARG_VALUE/);
+
+assert.throws(() => {
+  readline.cursorTo(writable, NaN, NaN);
+}, /ERR_INVALID_ARG_VALUE/);