From 1fd6240d09266edc7b45e0d74a704266213f0cf4 Mon Sep 17 00:00:00 2001
From: fourbites <yppdev25@gmail.com>
Date: Fri, 20 Mar 2026 15:41:04 +0100
Subject: [PATCH] Another class filtering fix

---
 core/src/main/java/com/threerings/io/ObjectInputStream.java | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/core/src/main/java/com/threerings/io/ObjectInputStream.java b/core/src/main/java/com/threerings/io/ObjectInputStream.java
index 0ca770352..6b0a5326c 100644
--- a/core/src/main/java/com/threerings/io/ObjectInputStream.java
+++ b/core/src/main/java/com/threerings/io/ObjectInputStream.java
@@ -258,7 +258,8 @@ public class ObjectInputStream extends DataInputStream
                 checkName = checkName.substring(1, checkName.length() - 1);
             }
 
-            boolean allowed = false;
+            // primitive array descriptors (I, Z, B, S, C, J, F, D) are always safe
+            boolean allowed = (checkName.length() == 1);
             for (String prefix : _allowedPrefixes) {
                 if (checkName.startsWith(prefix)) {
                     allowed = true;