Changeset

Author: ardatan

.changeset/dark-crabs-glow.md

@@ -0,0 +1,5 @@
+---
+'@graphql-tools/merge': patch
+---
+
+Prevent prototype polluting assignment

packages/merge/src/merge-resolvers.ts

@@ -72,7 +72,10 @@ export function mergeResolvers<TSource, TContext>(
   if (options?.exclusions) {
     for (const exclusion of options.exclusions) {
       const [typeName, fieldName] = exclusion.split('.');
-      if (['__proto__', 'constructor', 'prototype'].includes(typeName) || ['__proto__', 'constructor', 'prototype'].includes(fieldName)) {
+      if (
+        ['__proto__', 'constructor', 'prototype'].includes(typeName) ||
+        ['__proto__', 'constructor', 'prototype'].includes(fieldName)
+      ) {
         continue;
       }
       if (!fieldName || fieldName === '*') {