diff --git a/CHANGELOG.md b/CHANGELOG.md
index 85d757ba0d3..da3d28f22e1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -75,6 +75,7 @@ The present file will list all changes made to the project; according to the
 - Notifications can now specify exclusions for recipients.
 - Warranty expiration alerts no longer trigger for deleted items.
 - New UI for searching for Ticket/Change/Problem solutions from the Knowledgebase.
+- Validations are only allowed on Tickets and Changes that are not solved or closed.
 
 ### Deprecated
 - Survey URL tags `TICKETCATEGORY_ID` and `TICKETCATEGORY_NAME` are deprecated and replaced by `ITILCATEGORY_ID` and `ITILCATEGORY_NAME` respectively.
diff --git a/phpunit/functional/TicketValidationTest.php b/phpunit/functional/TicketValidationTest.php
index 3ad5d53d9cf..8ae8c0dc3ea 100644
--- a/phpunit/functional/TicketValidationTest.php
+++ b/phpunit/functional/TicketValidationTest.php
@@ -342,7 +342,16 @@ public static function testgetNumberToValidateProvider(): array
                     'name'      => 'Ticket_Closed_With_Validation_Request',
                     'content'   => 'Ticket_Closed_With_Validation_Request',
                 ],
-                'expected'  => 1,
+                'expected'  => true,
+                'user_id'   => getItemByTypeName('User', 'glpi', true)
+            ],
+            [
+                'input'     => [
+                    'name' => 'Ticket_With_Validation_Request',
+                    'content' => 'Ticket_With_Validation_Request',
+                    'status' =>  CommonITILObject::SOLVED
+                ],
+                'expected'  => false,
                 'user_id'   => getItemByTypeName('User', 'glpi', true)
             ],
             [
@@ -351,7 +360,7 @@ public static function testgetNumberToValidateProvider(): array
                     'content' => 'Ticket_With_Validation_Request',
                     'status' =>  CommonITILObject::CLOSED
                 ],
-                'expected'  => 0,
+                'expected'  => false,
                 'user_id'   => getItemByTypeName('User', 'glpi', true)
             ],
         ];
@@ -360,11 +369,13 @@ public static function testgetNumberToValidateProvider(): array
     #[DataProvider('testgetNumberToValidateProvider')]
     public function testgetNumberToValidate(
         array $input,
-        int $expected,
+        bool $expected,
         int $user_id
     ): void {
         $this->login();
 
+        $initial_count = \TicketValidation::getNumberToValidate($user_id);
+
         /** Create a ticket, approval requested */
         $ticket = $this->createItem('Ticket', $input);
 
@@ -374,6 +385,6 @@ public function testgetNumberToValidate(
             'items_id_target' => $user_id,
         ]);
 
-        $this->assertEquals($expected, \TicketValidation::getNumberToValidate($user_id));
+        $this->assertEquals($expected ? ($initial_count + 1) : $initial_count, \TicketValidation::getNumberToValidate($user_id));
     }
 }
diff --git a/src/CommonITILObject.php b/src/CommonITILObject.php
index 3bf0eef7d15..e26890cd4bd 100644
--- a/src/CommonITILObject.php
+++ b/src/CommonITILObject.php
@@ -7737,7 +7737,7 @@ class_exists($validation_class) && $params['with_validations']
                 $canedit = $validation_obj->can($validations_id, UPDATE);
                 $cananswer = $validation_obj->canValidate($this->getID())
                     && $validation_row['status'] == CommonITILValidation::WAITING
-                    && !in_array($this->fields['status'], $this->getClosedStatusArray());
+                    && !$this->isSolved(true);
                 $user = new User();
                 $user->getFromDB($validation_row['users_id_validate']);
 
diff --git a/src/CommonITILValidation.php b/src/CommonITILValidation.php
index 171d25d7a3f..090911b21f4 100644
--- a/src/CommonITILValidation.php
+++ b/src/CommonITILValidation.php
@@ -711,7 +711,7 @@ public static function getNumberToValidate($users_id)
         /** @var \DBmysql $DB */
         global $DB;
 
-        $row = $DB->request([
+        $it = $DB->request([
             'FROM'   => static::$itemtype::getTable(),
             'COUNT'  => 'cpt',
             'WHERE'  => [
@@ -726,12 +726,12 @@ public static function getNumberToValidate($users_id)
                     ])
                 ],
                 'NOT' => [
-                    'status' => static::$itemtype::getClosedStatusArray(),
+                    'status' => [...static::$itemtype::getSolvedStatusArray(), ...static::$itemtype::getClosedStatusArray()],
                 ],
             ]
-        ])->current();
+        ]);
 
-        return $row['cpt'];
+        return $it->current()['cpt'];
     }
 
     /**
diff --git a/src/Ticket.php b/src/Ticket.php
index 6ea234758ce..def199eef48 100644
--- a/src/Ticket.php
+++ b/src/Ticket.php
@@ -4207,8 +4207,8 @@ public static function showCentralList($start, $status = "process", bool $showgr
 
                         $options['criteria'][2]['field']      = 12; // validation aprobator
                         $options['criteria'][2]['searchtype'] = 'equals';
-                        $options['criteria'][2]['value']      = 'old';
-                        $options['criteria'][2]['link']       = 'AND NOT';
+                        $options['criteria'][2]['value']      = 'notold';
+                        $options['criteria'][2]['link']       = 'AND';
 
                         $options['criteria'][3]['field']      = 52; // global validation status
                         $options['criteria'][3]['searchtype'] = 'equals';
@@ -4658,8 +4658,8 @@ public static function showCentralCount(bool $foruser = false, bool $display = t
 
             $opt['criteria'][2]['field']      = 12; // ticket status
             $opt['criteria'][2]['searchtype'] = 'equals';
-            $opt['criteria'][2]['value']      = Ticket::CLOSED;
-            $opt['criteria'][2]['link']       = 'AND NOT';
+            $opt['criteria'][2]['value']      = 'notold';
+            $opt['criteria'][2]['link']       = 'AND';
 
             $twig_params['items'][] = [
                 'link'    => self::getSearchURL() . "?" . Toolbox::append_params($opt),