diff --git a/frontend/src/components/Inputs/InputPasswordConfirmation.vue b/frontend/src/components/Inputs/InputPasswordConfirmation.vue
index d0dc81156..ecb3aa55a 100644
--- a/frontend/src/components/Inputs/InputPasswordConfirmation.vue
+++ b/frontend/src/components/Inputs/InputPasswordConfirmation.vue
@@ -10,6 +10,7 @@
             containsNumericCharacter: true,
             atLeastEightCharactera: true,
             atLeastOneSpecialCharater: true,
+            noWhitespaceCharacters: true,
           }"
           :label="register ? $t('form.password') : $t('form.password_new')"
           :showAllErrors="true"
diff --git a/frontend/src/locales/de.json b/frontend/src/locales/de.json
index c7a0946f5..f998df196 100644
--- a/frontend/src/locales/de.json
+++ b/frontend/src/locales/de.json
@@ -167,6 +167,7 @@
       "dont_match": "Die Passwörter stimmen nicht überein.",
       "lowercase": "Ein Kleinbuchstabe erforderlich.",
       "minimum": "Mindestens 8 Zeichen.",
+      "no-whitespace": "Keine Leerzeichen und Tabulatoren",
       "one_number": "Eine Zahl erforderlich.",
       "special-char": "Ein Sonderzeichen erforderlich (z.B. _ oder ä)",
       "subtitle": "Werde Teil der Gemeinschaft!",
diff --git a/frontend/src/locales/en.json b/frontend/src/locales/en.json
index b3148fe3f..e7eba4b93 100644
--- a/frontend/src/locales/en.json
+++ b/frontend/src/locales/en.json
@@ -167,6 +167,7 @@
       "dont_match": "Passwords don't match.",
       "lowercase": "One lowercase letter required.",
       "minimum": "8 characters minimum.",
+      "no-whitespace": "No white spaces and tabs",
       "one_number": "One number required.",
       "special-char": "One special character required (e.g. _ or ä)",
       "subtitle": "Become a part of the community!",
diff --git a/frontend/src/validation-rules.js b/frontend/src/validation-rules.js
index e836de56b..9ea954a92 100644
--- a/frontend/src/validation-rules.js
+++ b/frontend/src/validation-rules.js
@@ -114,11 +114,18 @@ export const loadAllRules = (i18nCallback) => {
 
   extend('atLeastOneSpecialCharater', {
     validate(value) {
-      return !!value.match(/[^a-zA-Z0-9 \t\n]/)
+      return !!value.match(/[^a-zA-Z0-9]/)
     },
     message: (_, values) => i18nCallback.t('site.signup.special-char', values),
   })
 
+  extend('noWhitespaceCharacters', {
+    validate(value) {
+      return !!value.match(/[^ \t\n\r]/)
+    },
+    message: (_, values) => i18nCallback.t('site.signup.no-whitespace', values),
+  })
+
   extend('samePassword', {
     validate(value, [pwd]) {
       return value === pwd
diff --git a/frontend/src/views/Pages/UserProfile/UserCard_FormUserPasswort.spec.js b/frontend/src/views/Pages/UserProfile/UserCard_FormUserPasswort.spec.js
index 7e9703c02..a1fa1dd3f 100644
--- a/frontend/src/views/Pages/UserProfile/UserCard_FormUserPasswort.spec.js
+++ b/frontend/src/views/Pages/UserProfile/UserCard_FormUserPasswort.spec.js
@@ -105,13 +105,14 @@ describe('UserCard_FormUserPasswort', () => {
       describe('validation', () => {
         it('displays all password requirements', () => {
           const feedbackArray = wrapper.findAll('div.invalid-feedback').at(1).findAll('span')
-          expect(feedbackArray).toHaveLength(6)
+          expect(feedbackArray).toHaveLength(7)
           expect(feedbackArray.at(0).text()).toBe('validations.messages.required')
           expect(feedbackArray.at(1).text()).toBe('site.signup.lowercase')
           expect(feedbackArray.at(2).text()).toBe('site.signup.uppercase')
           expect(feedbackArray.at(3).text()).toBe('site.signup.one_number')
           expect(feedbackArray.at(4).text()).toBe('site.signup.minimum')
           expect(feedbackArray.at(5).text()).toBe('site.signup.special-char')
+          expect(feedbackArray.at(6).text()).toBe('site.signup.no-whitespace')
         })
 
         it('removes first message when a character is given', async () => {