diff --git a/csaf_2.1/json_schema/csaf_json_schema.json b/csaf_2.1/json_schema/csaf_json_schema.json
index 1c42ccb5..f14374fb 100644
--- a/csaf_2.1/json_schema/csaf_json_schema.json
+++ b/csaf_2.1/json_schema/csaf_json_schema.json
@@ -159,7 +159,7 @@
               "title": "Common Platform Enumeration representation",
               "description": "The Common Platform Enumeration (CPE) attribute refers to a method for naming platforms external to this specification.",
               "type": "string",
-              "pattern": "^(cpe:2\\.3:[aho\\*\\-](:(((\\?*|\\*?)([a-zA-Z0-9\\-\\._]|(\\\\[\\\\\\*\\?!\"#\\$%&'\\(\\)\\+,/:;<=>@\\[\\]\\^`\\{\\|\\}~]))+(\\?*|\\*?))|[\\*\\-])){5}(:(([a-zA-Z]{2,3}(-([a-zA-Z]{2}|[0-9]{3}))?)|[\\*\\-]))(:(((\\?*|\\*?)([a-zA-Z0-9\\-\\._]|(\\\\[\\\\\\*\\?!\"#\\$%&'\\(\\)\\+,/:;<=>@\\[\\]\\^`\\{\\|\\}~]))+(\\?*|\\*?))|[\\*\\-])){4})|([c][pP][eE]:/[AHOaho]?(:[A-Za-z0-9\\._\\-~%]*){0,6})$",
+              "pattern": "^((cpe:2\\.3:[aho\\*\\-](:(((\\?*|\\*?)([a-zA-Z0-9\\-\\._]|(\\\\[\\\\\\*\\?!\"#\\$%&'\\(\\)\\+,\\/:;<=>@\\[\\]\\^`\\{\\|\\}~]))+(\\?*|\\*?))|[\\*\\-])){5}(:(([a-zA-Z]{2,3}(-([a-zA-Z]{2}|[0-9]{3}))?)|[\\*\\-]))(:(((\\?*|\\*?)([a-zA-Z0-9\\-\\._]|(\\\\[\\\\\\*\\?!\"#\\$%&'\\(\\)\\+,/:;<=>@\\[\\]\\^`\\{\\|\\}~]))+(\\?*|\\*?))|[\\*\\-])){4})|([c][pP][eE]:\\/[AHOaho]?(:[A-Za-z0-9\\._\\-~%]*){0,6}))$",
               "minLength": 5
             },
             "hashes": {
diff --git a/csaf_2.1/prose/edit/src/schema-elements-01-defs-03-full-product-name.md b/csaf_2.1/prose/edit/src/schema-elements-01-defs-03-full-product-name.md
index 59690c97..013ee33f 100644
--- a/csaf_2.1/prose/edit/src/schema-elements-01-defs-03-full-product-name.md
+++ b/csaf_2.1/prose/edit/src/schema-elements-01-defs-03-full-product-name.md
@@ -80,7 +80,7 @@ and `x_generic_uris`, one is mandatory.
 Common Platform Enumeration representation (`cpe`) of value type `string` of 5 or more characters with `pattern` (regular expression):
 
 ```
-    ^(cpe:2\\.3:[aho\\*\\-](:(((\\?*|\\*?)([a-zA-Z0-9\\-\\._]|(\\\\[\\\\\\*\\?!\"#\\$%&'\\(\\)\\+,/:;<=>@\\[\\]\\^`\\{\\|\\}~]))+(\\?*|\\*?))|[\\*\\-])){5}(:(([a-zA-Z]{2,3}(-([a-zA-Z]{2}|[0-9]{3}))?)|[\\*\\-]))(:(((\\?*|\\*?)([a-zA-Z0-9\\-\\._]|(\\\\[\\\\\\*\\?!\"#\\$%&'\\(\\)\\+,/:;<=>@\\[\\]\\^`\\{\\|\\}~]))+(\\?*|\\*?))|[\\*\\-])){4})|([c][pP][eE]:/[AHOaho]?(:[A-Za-z0-9\\._\\-~%]*){0,6})$
+    ^((cpe:2\\.3:[aho\\*\\-](:(((\\?*|\\*?)([a-zA-Z0-9\\-\\._]|(\\\\[\\\\\\*\\?!\"#\\$%&'\\(\\)\\+,\\/:;<=>@\\[\\]\\^`\\{\\|\\}~]))+(\\?*|\\*?))|[\\*\\-])){5}(:(([a-zA-Z]{2,3}(-([a-zA-Z]{2}|[0-9]{3}))?)|[\\*\\-]))(:(((\\?*|\\*?)([a-zA-Z0-9\\-\\._]|(\\\\[\\\\\\*\\?!\"#\\$%&'\\(\\)\\+,/:;<=>@\\[\\]\\^`\\{\\|\\}~]))+(\\?*|\\*?))|[\\*\\-])){4})|([c][pP][eE]:\\/[AHOaho]?(:[A-Za-z0-9\\._\\-~%]*){0,6}))$
 ```
 
 The Common Platform Enumeration (CPE) attribute refers to a method for naming platforms external to this specification.