--- /Base64.java	2023-07-05 03:11:55.458027951 +0200
+++ /Codec-1/src/java/org/apache/commons/codec/binary/Base64.java	2023-07-05 03:11:55.462027950 +0200
@@ -195,7 +195,7 @@
             return true;
         }
         for (int i = 0; i < length; i++) {
-            if (!isBase64(arrayOctect[i])) {
+if  (  ( octect < 0 )  ||  (  ( base64Alphabet[octect] )  ==  ( -1 )  )  )  {     return false; }else {     return true; }
                 return false;
             }
         }
