diff --git a/CHANGELOG.md b/CHANGELOG.md
index 73e3be69310e..19a5f82cfc33 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -20,6 +20,7 @@
 - [`RegExp.escape`](https://github.com/tc39/proposal-regex-escaping) [moved to hex-escape semantics](https://github.com/tc39/proposal-regex-escaping/pull/67)
 - Some minor updates of [Explicit Resource Management](https://github.com/tc39/proposal-explicit-resource-management) Stage 3 proposal like [explicit-resource-management/217](https://github.com/tc39/proposal-explicit-resource-management/pull/217)
 - Engines bugs fixes:
+  - Added a fix of [Safari `{ Object, Map }.groupBy` bug that does not support iterable primitives](https://bugs.webkit.org/show_bug.cgi?id=271524)
   - Added a fix of [Safari bug with double call of constructor in `Array.fromAsync`](https://bugs.webkit.org/show_bug.cgi?id=271703)
 - Compat data improvements:
   - [`URL.parse`](https://url.spec.whatwg.org/#dom-url-parse) added and marked as supported [from FF 126](https://bugzilla.mozilla.org/show_bug.cgi?id=1887611)
diff --git a/packages/core-js-compat/src/data.mjs b/packages/core-js-compat/src/data.mjs
index 1d6a3e56fa47..531d2622dcef 100644
--- a/packages/core-js-compat/src/data.mjs
+++ b/packages/core-js-compat/src/data.mjs
@@ -606,10 +606,12 @@ export const data = {
     safari: '10.0',
   },
   'es.map.group-by': {
-    bun: '1.0.19',
+    // https://bugs.webkit.org/show_bug.cgi?id=271524
+    bun: '1.1.2', // bun: '1.0.19',
     chrome: '117',
     firefox: '119',
-    safari: '17.4',
+    // https://bugs.webkit.org/show_bug.cgi?id=271524
+    // safari: '17.4',
   },
   'es.math.acosh': {
     chrome: '54',
@@ -972,10 +974,12 @@ export const data = {
     safari: '9.0',
   },
   'es.object.group-by': {
-    bun: '1.0.19',
+    // https://bugs.webkit.org/show_bug.cgi?id=271524
+    bun: '1.1.2', // bun: '1.0.19',
     chrome: '117',
     firefox: '119',
-    safari: '17.4',
+    // https://bugs.webkit.org/show_bug.cgi?id=271524
+    // safari: '17.4',
   },
   'es.object.has-own': {
     chrome: '93',
diff --git a/packages/core-js/modules/es.map.group-by.js b/packages/core-js/modules/es.map.group-by.js
index badc33250ac9..2fbfe468e228 100644
--- a/packages/core-js/modules/es.map.group-by.js
+++ b/packages/core-js/modules/es.map.group-by.js
@@ -6,6 +6,7 @@ var requireObjectCoercible = require('../internals/require-object-coercible');
 var iterate = require('../internals/iterate');
 var MapHelpers = require('../internals/map-helpers');
 var IS_PURE = require('../internals/is-pure');
+var fails = require('../internals/fails');
 
 var Map = MapHelpers.Map;
 var has = MapHelpers.has;
@@ -13,9 +14,15 @@ var get = MapHelpers.get;
 var set = MapHelpers.set;
 var push = uncurryThis([].push);
 
+var DOES_NOT_WORK_WITH_PRIMITIVES = IS_PURE || fails(function () {
+  return Map.groupBy('ab', function (it) {
+    return it;
+  }).get('a').length !== 1;
+});
+
 // `Map.groupBy` method
 // https://github.com/tc39/proposal-array-grouping
-$({ target: 'Map', stat: true, forced: IS_PURE }, {
+$({ target: 'Map', stat: true, forced: IS_PURE || DOES_NOT_WORK_WITH_PRIMITIVES }, {
   groupBy: function groupBy(items, callbackfn) {
     requireObjectCoercible(items);
     aCallable(callbackfn);
diff --git a/packages/core-js/modules/es.object.group-by.js b/packages/core-js/modules/es.object.group-by.js
index aa2464c3456a..18799c3e3a14 100644
--- a/packages/core-js/modules/es.object.group-by.js
+++ b/packages/core-js/modules/es.object.group-by.js
@@ -6,13 +6,22 @@ var aCallable = require('../internals/a-callable');
 var requireObjectCoercible = require('../internals/require-object-coercible');
 var toPropertyKey = require('../internals/to-property-key');
 var iterate = require('../internals/iterate');
+var fails = require('../internals/fails');
 
+// eslint-disable-next-line es/no-object-map-groupby -- testing
+var nativeGroupBy = Object.groupBy;
 var create = getBuiltIn('Object', 'create');
 var push = uncurryThis([].push);
 
+var DOES_NOT_WORK_WITH_PRIMITIVES = !nativeGroupBy || fails(function () {
+  return nativeGroupBy('ab', function (it) {
+    return it;
+  }).a.length !== 1;
+});
+
 // `Object.groupBy` method
 // https://github.com/tc39/proposal-array-grouping
-$({ target: 'Object', stat: true }, {
+$({ target: 'Object', stat: true, forced: DOES_NOT_WORK_WITH_PRIMITIVES }, {
   groupBy: function groupBy(items, callbackfn) {
     requireObjectCoercible(items);
     aCallable(callbackfn);
diff --git a/tests/compat/tests.js b/tests/compat/tests.js
index b7d5c2b19a9f..4fc6952b7545 100644
--- a/tests/compat/tests.js
+++ b/tests/compat/tests.js
@@ -704,7 +704,10 @@ GLOBAL.tests = {
       && map[Symbol.toStringTag];
   }],
   'es.map.group-by': function () {
-    return Map.groupBy;
+    // https://bugs.webkit.org/show_bug.cgi?id=271524
+    return Map.groupBy('ab', function (it) {
+      return it;
+    }).get('a').length === 1;
   },
   'es.math.acosh': function () {
     // V8 bug: https://code.google.com/p/v8/issues/detail?id=3509
@@ -893,7 +896,10 @@ GLOBAL.tests = {
     return Object.getPrototypeOf('qwe');
   },
   'es.object.group-by': function () {
-    return Object.groupBy;
+    // https://bugs.webkit.org/show_bug.cgi?id=271524
+    return Object.groupBy('ab', function (it) {
+      return it;
+    }).a.length === 1;
   },
   'es.object.has-own': function () {
     return Object.hasOwn;
diff --git a/tests/unit-global/es.map.group-by.js b/tests/unit-global/es.map.group-by.js
index 1cbcdf1607cd..0c40c50d3cc0 100644
--- a/tests/unit-global/es.map.group-by.js
+++ b/tests/unit-global/es.map.group-by.js
@@ -16,6 +16,7 @@ QUnit.test('Map.groupBy', assert => {
   assert.deepEqual(toArray(groupBy([1, 2], it => it ** 2)), [[1, [1]], [4, [2]]]);
   assert.deepEqual(toArray(groupBy([1, 2, 1], it => it ** 2)), [[1, [1, 1]], [4, [2]]]);
   assert.deepEqual(toArray(groupBy(createIterable([1, 2]), it => it ** 2)), [[1, [1]], [4, [2]]]);
+  assert.deepEqual(toArray(groupBy('qwe', it => it)), [['q', ['q']], ['w', ['w']], ['e', ['e']]], 'iterable string');
 
   const element = {};
   groupBy([element], function (it, i) {
diff --git a/tests/unit-global/es.object.group-by.js b/tests/unit-global/es.object.group-by.js
index 4a84a61e7546..fd8f0f97d920 100644
--- a/tests/unit-global/es.object.group-by.js
+++ b/tests/unit-global/es.object.group-by.js
@@ -15,6 +15,7 @@ QUnit.test('Object.groupBy', assert => {
   assert.deepEqual(entries(groupBy([1, 2], it => it ** 2)), [['1', [1]], ['4', [2]]]);
   assert.deepEqual(entries(groupBy([1, 2, 1], it => it ** 2)), [['1', [1, 1]], ['4', [2]]]);
   assert.deepEqual(entries(groupBy(createIterable([1, 2]), it => it ** 2)), [['1', [1]], ['4', [2]]]);
+  assert.deepEqual(entries(groupBy('qwe', it => it)), [['q', ['q']], ['w', ['w']], ['e', ['e']]], 'iterable string');
 
   const element = {};
   groupBy([element], function (it, i) {
diff --git a/tests/unit-pure/es.map.group-by.js b/tests/unit-pure/es.map.group-by.js
index c73069ff8e27..d512477e9438 100644
--- a/tests/unit-pure/es.map.group-by.js
+++ b/tests/unit-pure/es.map.group-by.js
@@ -16,6 +16,7 @@ QUnit.test('Map.groupBy', assert => {
   assert.deepEqual(from(groupBy([1, 2], it => it ** 2)), [[1, [1]], [4, [2]]]);
   assert.deepEqual(from(groupBy([1, 2, 1], it => it ** 2)), [[1, [1, 1]], [4, [2]]]);
   assert.deepEqual(from(groupBy(createIterable([1, 2]), it => it ** 2)), [[1, [1]], [4, [2]]]);
+  assert.deepEqual(from(groupBy('qwe', it => it)), [['q', ['q']], ['w', ['w']], ['e', ['e']]], 'iterable string');
 
   const element = {};
   groupBy([element], function (it, i) {
diff --git a/tests/unit-pure/es.object.group-by.js b/tests/unit-pure/es.object.group-by.js
index bd0acf78a960..c3fbeb140eed 100644
--- a/tests/unit-pure/es.object.group-by.js
+++ b/tests/unit-pure/es.object.group-by.js
@@ -14,6 +14,7 @@ QUnit.test('Object.groupBy', assert => {
   assert.deepEqual(entries(groupBy([1, 2], it => it ** 2)), [['1', [1]], ['4', [2]]]);
   assert.deepEqual(entries(groupBy([1, 2, 1], it => it ** 2)), [['1', [1, 1]], ['4', [2]]]);
   assert.deepEqual(entries(groupBy(createIterable([1, 2]), it => it ** 2)), [['1', [1]], ['4', [2]]]);
+  assert.deepEqual(entries(groupBy('qwe', it => it)), [['q', ['q']], ['w', ['w']], ['e', ['e']]], 'iterable string');
 
   const element = {};
   groupBy([element], function (it, i) {