From 7e9ae081b309cf70771e90ff0c839e36800cba1f Mon Sep 17 00:00:00 2001
From: Federico Franco <franco.federi@gmail.com>
Date: Sun, 1 Feb 2026 17:32:36 +0900
Subject: [PATCH] [rb] fix select being able to select options hidden by css
 rules

---
 rb/lib/selenium/webdriver/support/select.rb   | 19 +++++++++++++++++++
 .../selenium/webdriver/select_spec.rb         | 17 +++++++++++++++++
 2 files changed, 36 insertions(+)

diff --git a/rb/lib/selenium/webdriver/support/select.rb b/rb/lib/selenium/webdriver/support/select.rb
index f5ad753f14914..aa2ec5a0d9d24 100644
--- a/rb/lib/selenium/webdriver/support/select.rb
+++ b/rb/lib/selenium/webdriver/support/select.rb
@@ -217,10 +217,20 @@ def deselect_by_index(index)
         def select_option(option)
           raise Error::UnsupportedOperationError, 'You may not select a disabled option' unless option.enabled?
 
+          unless css_property_and_visible?(option)
+            raise Error::ElementNotInteractableError,
+                  'You may not select an invisible option'
+          end
+
           option.click unless option.selected?
         end
 
         def deselect_option(option)
+          unless css_property_and_visible?(option)
+            raise Error::ElementNotInteractableError,
+                  'You may not deselect an invisible option'
+          end
+
           option.click if option.selected?
         end
 
@@ -266,6 +276,15 @@ def find_by_index(index)
         def find_by_value(value)
           @element.find_elements(xpath: ".//option[@value = #{Escaper.escape value}]")
         end
+
+        def css_property_and_visible?(element)
+          css_value_candidates = %w[hidden none 0 0.0].to_set
+          css_property_candidates = %w[visibility display opacity]
+
+          css_property_candidates.none? do |property|
+            css_value_candidates.include?(element.css_value(property))
+          end
+        end
       end # Select
     end # Support
   end # WebDriver
diff --git a/rb/spec/integration/selenium/webdriver/select_spec.rb b/rb/spec/integration/selenium/webdriver/select_spec.rb
index dbea49e93584a..d7e78b800f770 100644
--- a/rb/spec/integration/selenium/webdriver/select_spec.rb
+++ b/rb/spec/integration/selenium/webdriver/select_spec.rb
@@ -27,6 +27,7 @@ module Support
         let(:multi_select) { described_class.new(driver.find_element(id: 'multi')) }
         let(:single_disabled) { described_class.new(driver.find_element(name: 'single_disabled')) }
         let(:multi_disabled) { described_class.new(driver.find_element(name: 'multi_disabled')) }
+        let(:multi_invisible) { described_class.new(driver.find_element(id: 'invisible_multi_select')) }
 
         before { driver.navigate.to url_for('formPage.html') }
         after { reset_driver! if GlobalTestEnv.rbe? && GlobalTestEnv.browser == :chrome }
@@ -120,6 +121,14 @@ module Support
               it 'errors when not found' do
                 expect { multi_select.select_by(:text, 'invalid') }.to raise_exception(Error::NoSuchElementError)
               end
+
+              it 'errors when option is invisible', :aggregate_failures do
+                %w[Apples Pears Oranges Lemons].each do |text|
+                  expect {
+                    multi_invisible.select_by(:text, text)
+                  }.to raise_exception(Error::ElementNotInteractableError)
+                end
+              end
             end
 
             context 'when by index' do
@@ -298,6 +307,14 @@ module Support
             it 'errors when not found' do
               expect { multi_select.deselect_by(:text, 'invalid') }.to raise_exception(Error::NoSuchElementError)
             end
+
+            it 'errors when option is invisible', :aggregate_failures do
+              %w[Apples Pears Oranges Lemons].each do |text|
+                expect {
+                  multi_invisible.deselect_by(:text, text)
+                }.to raise_exception(Error::ElementNotInteractableError)
+              end
+            end
           end
 
           context 'when by index' do