Low chrome Logic Error 🔧 Commit mapped

Overview

Low
Severity
CVSS
No
Exploited ITW
Fixed
Fix Status
ImpactInsufficient policy enforcement in Passwords
DescriptionInsufficient policy enforcement in Passwords
ComponentPasswords
Bug ClassLogic Error
Tracker501708647
Fix commit08456f50839d (chromium/src) +41/-3
CISA KEVNot listed
CreditedGoogle
Disclosed2026-06-30

Changed Functions

FunctionChangeNotes
if
components/password_manager/core/browser/undo_password_change_controller.cc
modified

Files Changed

  • components/password_manager/core/browser/undo_password_change_controller.cc
  • components/password_manager/core/browser/undo_password_change_controller_unittest.cc
From 08456f50839dffaefdf84205548fe537eb434870 Mon Sep 17 00:00:00 2001
From: Oleksandr Tara <[email protected]>
Date: Tue, 19 May 2026 01:50:09 -0700
Subject: [PATCH] Ignore grouped affiliations for proactive password recovery.

Suggestions from grouped affiliations need to show cross-domain
confirmation before filling but to achieve this in the proactive
password recovery, we need non-trivial amount of work. Instead, as a
quick fix, we can disable proactive recovery for passwords from grouped
affiliations.

Fixed: b:501708647
Change-Id: I36d0ecbdf03fd0afd14a6fec62f8af38a0759fed
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/7854926
Reviewed-by: Viktor Semeniuk <[email protected]>
Commit-Queue: Ioana Treib <[email protected]>
Reviewed-by: Ioana Treib <[email protected]>
Auto-Submit: Oleksandr Tara <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1632709}
---

diff --git a/components/password_manager/core/browser/undo_password_change_controller.cc b/components/password_manager/core/browser/undo_password_change_controller.cc
index d18f18c0..3239365 100644
--- a/components/password_manager/core/browser/undo_password_change_controller.cc
+++ b/components/password_manager/core/browser/undo_password_change_controller.cc
@@ -30,6 +30,29 @@
 constexpr char kPasswordChangeRecoveryFlowStateHistogram[] =
     "PasswordManager.PasswordChangeRecoveryFlow";
 
+bool IsFormEligibleForProactiveRecovery(
+    const StoredCredential* form_best_match,
+    const std::u16string& failed_password_value) {
+  if (!form_best_match) {
+    return false;
+  }
+
+  if (password_manager_util::GetMatchType(*form_best_match) ==
+      password_manager_util::GetLoginMatchType::kGrouped) {
+    return false;
+  }
+
+  if (!form_best_match->GetPasswordBackup()) {
+    return false;
+  }
+
+  if (form_best_match->GetPasswordBackup() == failed_password_value) {
+    return false;
+  }
+
+  return true;
+}
+
 }  // namespace
 
 UndoPasswordChangeController::UndoPasswordChangeController() = default;
@@ -168,9 +191,8 @@
     const StoredCredential* form_best_match =
         password_manager_util::FindCredentialByUsername(
             form_manager->GetBestMatches(), failed_login_form_->username_value);
-    if (!form_best_match || !form_best_match->GetPasswordBackup() ||
-        form_best_match->GetPasswordBackup() ==
-            failed_login_form_->password_value) {
+    if (!IsFormEligibleForProactiveRecovery(
+            form_best_match, failed_login_form_->password_value)) {
       FinishObserving();
       return;
     }
diff --git a/components/password_manager/core/browser/undo_password_change_controller_unittest.cc b/components/password_manager/core/browser/undo_password_change_controller_unittest.cc
index cb3498d3..5b72771e 100644
--- a/components/password_manager/core/browser/undo_password_change_controller_unittest.cc
+++ b/components/password_manager/core/browser/undo_password_change_controller_unittest.cc
@@ -383,6 +383,22 @@
 }
 
 TEST_F(UndoPasswordChangeControllerTest,
+       OnLoginPotentiallyFailed_GroupedAffiliation_Ignored) {
+  best_match_form_.SetPasswordBackupNote(kBackupPassword);
+  best_match_form_.match_type =
+      password_manager::PasswordForm::MatchType::kGrouped;
+  auto form_manager = CreateFormManager(best_match_form_);
+
+  controller_.OnLoginPotentiallyFailed(&driver_, failed_login_form_);
+  EXPECT_CALL(driver_, TriggerPasswordRecoverySuggestions).Times(0);
+  static_cast<PasswordFormManagerObserver*>(&controller_)
+      ->OnPasswordFormParsed(form_manager.get());
+
+  EXPECT_EQ(controller_.GetState(kUsername),
+            PasswordRecoveryState::kRegularFlow);
+}
+
+TEST_F(UndoPasswordChangeControllerTest,
        FindLoginWithProactiveRecoveryStateNoMatch) {
   best_match_form_.SetPasswordBackupNote(kBackupPassword);
   auto form_manager = CreateFormManager(best_match_form_);
Loading diff…

Regression Test / PoC

shipped with the fix
diff --git a/components/password_manager/core/browser/undo_password_change_controller_unittest.cc b/components/password_manager/core/browser/undo_password_change_controller_unittest.cc
index cb3498d3..5b72771e 100644
--- a/components/password_manager/core/browser/undo_password_change_controller_unittest.cc
+++ b/components/password_manager/core/browser/undo_password_change_controller_unittest.cc
@@ -383,6 +383,22 @@
 }
 
 TEST_F(UndoPasswordChangeControllerTest,
+       OnLoginPotentiallyFailed_GroupedAffiliation_Ignored) {
+  best_match_form_.SetPasswordBackupNote(kBackupPassword);
+  best_match_form_.match_type =
+      password_manager::PasswordForm::MatchType::kGrouped;
+  auto form_manager = CreateFormManager(best_match_form_);
+
+  controller_.OnLoginPotentiallyFailed(&driver_, failed_login_form_);
+  EXPECT_CALL(driver_, TriggerPasswordRecoverySuggestions).Times(0);
+  static_cast<PasswordFormManagerObserver*>(&controller_)
+      ->OnPasswordFormParsed(form_manager.get());
+
+  EXPECT_EQ(controller_.GetState(kUsername),
+            PasswordRecoveryState::kRegularFlow);
+}
+
+TEST_F(UndoPasswordChangeControllerTest,
        FindLoginWithProactiveRecoveryStateNoMatch) {
   best_match_form_.SetPasswordBackupNote(kBackupPassword);
   auto form_manager = CreateFormManager(best_match_form_);
Loading diff…

Original Bug Report

The reporter's bug is still restricted on the tracker. Chrome de-restricts security bugs ~30–90 days after the fix ships; a later run will backfill it here.