diff --git a/eslint.config.js b/eslint.config.js
index 319fadbbd5db86..f2893072bd2ba1 100644
--- a/eslint.config.js
+++ b/eslint.config.js
@@ -45,7 +45,7 @@ export default [
 			jsdoc
 		},
 		languageOptions: {
-			ecmaVersion: 2018,
+			ecmaVersion: 2022,
 			sourceType: 'module',
 			globals: {
 				...globals.browser,
@@ -134,7 +134,7 @@ export default [
 		name: 'editor rules',
 		files: [ 'editor/**/*.js' ],
 		languageOptions: {
-			ecmaVersion: 2020,
+			ecmaVersion: 2022,
 			sourceType: 'module'
 		}
 	}
diff --git a/examples/jsm/loaders/GLTFLoader.js b/examples/jsm/loaders/GLTFLoader.js
index d5791f06c05579..91629ef9f7a39b 100644
--- a/examples/jsm/loaders/GLTFLoader.js
+++ b/examples/jsm/loaders/GLTFLoader.js
@@ -1273,6 +1273,8 @@ class GLTFMaterialsIorExtension {
 
 		materialParams.ior = extension.ior !== undefined ? extension.ior : 1.5;
 
+		if ( materialParams.ior === 0 ) materialParams.ior = 1000; // see #26167
+
 		return Promise.resolve();
 
 	}
diff --git a/src/loaders/DataTextureLoader.js b/src/loaders/DataTextureLoader.js
index 2a8de258dfdf35..068b756a46543c 100644
--- a/src/loaders/DataTextureLoader.js
+++ b/src/loaders/DataTextureLoader.js
@@ -2,6 +2,7 @@ import { LinearFilter, LinearMipmapLinearFilter, ClampToEdgeWrapping } from '../
 import { FileLoader } from './FileLoader.js';
 import { DataTexture } from '../textures/DataTexture.js';
 import { Loader } from './Loader.js';
+import { error } from '../utils.js';
 
 /**
  * Abstract base class for loading binary texture formats RGBE, EXR or TGA.
@@ -57,15 +58,15 @@ class DataTextureLoader extends Loader {
 
 				texData = scope.parse( buffer );
 
-			} catch ( error ) {
+			} catch ( e ) {
 
 				if ( onError !== undefined ) {
 
-					onError( error );
+					onError( e );
 
 				} else {
 
-					error( error );
+					error( e );
 					return;
 
 				}