diff --git a/docs/framework/contributing/code-style.md b/docs/framework/contributing/code-style.md
index 656f07a37dc..7505f7f48fa 100644
--- a/docs/framework/contributing/code-style.md
+++ b/docs/framework/contributing/code-style.md
@@ -1224,3 +1224,7 @@ import { AIAssistant } from 'ckeditor5-premium-features';
 ### SVG imports only in the `@ckeditor/ckeditor5-icons` package
 
 This rule ensures that SVG files are imported and exported only in the `@ckeditor/ckeditor5-icons` package. This package should include all icons used in CKEditor 5.
+
+### Valid changelog entries
+
+This rule ensures that changelog entry files are populated with proper data and a clear description of the change. For a full guide on how to populate changelog entries, see the {@link framework/contributing/changelog-entries Changelog entries} guide.
diff --git a/eslint.config.mjs b/eslint.config.mjs
index 138a4d6f836..66b33d9add2 100644
--- a/eslint.config.mjs
+++ b/eslint.config.mjs
@@ -3,23 +3,29 @@
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-licensing-options
  */
 
+import { readdirSync } from 'fs';
 import globals from 'globals';
 import { defineConfig } from 'eslint/config';
 import ckeditor5Rules from 'eslint-plugin-ckeditor5-rules';
 import ckeditor5Config from 'eslint-config-ckeditor5';
 import ts from 'typescript-eslint';
 import eslintPluginImport from 'eslint-plugin-import';
-
 import rootPkgJson from './package.json' with { type: 'json' };
+import { CKEDITOR5_PACKAGES_PATH } from './scripts/constants.mjs';
 
 const disallowedImports = Object.keys( rootPkgJson.devDependencies ).filter( pkgName => {
 	return pkgName.match( /^(@ckeditor\/)?ckeditor5-(?!dev-)/ );
 } );
 
+const projectPackages = readdirSync( CKEDITOR5_PACKAGES_PATH, { withFileTypes: true } )
+	.filter( dirent => dirent.isDirectory() )
+	.map( dirent => dirent.name );
+
 export default defineConfig( [
 	{
 		ignores: [
 			'.*/',
+			'!.changelog/',
 			'build/**',
 			'coverage/**',
 			'dist/**',
@@ -179,5 +185,24 @@ export default defineConfig( [
 		rules: {
 			'ckeditor5-rules/ckeditor-imports': 'off'
 		}
+	},
+	{
+		extends: ckeditor5Config,
+
+		files: [ '.changelog/**/*.md' ],
+
+		plugins: {
+			'ckeditor5-rules': ckeditor5Rules
+		},
+
+		rules: {
+			'ckeditor5-rules/validate-changelog-entry': [ 'error', {
+				allowedScopes: [
+					...projectPackages,
+					'ckeditor5'
+				],
+				repositoryType: 'mono'
+			} ]
+		}
 	}
 ] );
diff --git a/scripts/constants.mjs b/scripts/constants.mjs
index d9e7e5360f2..4a810c3bd93 100644
--- a/scripts/constants.mjs
+++ b/scripts/constants.mjs
@@ -4,14 +4,13 @@
  */
 
 import upath from 'upath';
-import { fileURLToPath } from 'url';
 import { PACKAGES_DIRECTORY } from './release/utils/constants.mjs';
-const __filename = fileURLToPath( import.meta.url );
-const __dirname = upath.dirname( __filename );
 
-export const CKEDITOR5_ROOT_PATH = upath.join( __dirname, '..' );
+export const CKEDITOR5_ROOT_PATH = upath.join( import.meta.dirname, '..' );
+export const CKEDITOR5_PACKAGES_PATH = upath.join( CKEDITOR5_ROOT_PATH, PACKAGES_DIRECTORY );
 export const CKEDITOR5_COMMERCIAL_PATH = upath.join( CKEDITOR5_ROOT_PATH, 'external', 'ckeditor5-commercial' );
-export const CKEDITOR5_PREMIUM_FEATURES_PATH = upath.join( CKEDITOR5_COMMERCIAL_PATH, PACKAGES_DIRECTORY, 'ckeditor5-premium-features' );
+export const CKEDITOR5_COMMERCIAL_PACKAGES_PATH = upath.join( CKEDITOR5_COMMERCIAL_PATH, PACKAGES_DIRECTORY );
+export const CKEDITOR5_PREMIUM_FEATURES_PATH = upath.join( CKEDITOR5_COMMERCIAL_PACKAGES_PATH, 'ckeditor5-premium-features' );
 
 export const CKEDITOR5_INDEX = upath.join( CKEDITOR5_ROOT_PATH, 'src', 'index.ts' );
 export const CKEDITOR5_PREMIUM_FEATURES_INDEX = upath.join( CKEDITOR5_PREMIUM_FEATURES_PATH, 'src', 'index.ts' );