Merge pull request #92 from contentstack/fix/dx-1852-sre-issue-regex

dx | 1852 | sre issue

Author: harshithad0703

src/lib/query.ts

@@ -30,11 +30,15 @@ export class Query extends BaseQuery {
 
   // Validate if input matches any of the safe, pre-approved patterns
   private isValidRegexPattern(input: string): boolean {
+    const validRegex = /^[a-zA-Z0-9|^$.*+?()[\]{}\\-]+$/; // Allow only safe regex characters
+    if (!validRegex.test(input)) {
+        return false;
+    }
     try {
-        new RegExp(input); // Try to create a new RegExp object
-        return true; // No error means it's a valid regex
+        new RegExp(input);
+        return true;
     } catch (e) {
-        return false; // Error means it's not a valid regex
+        return false;
     }
   }