From b374a031ec0f73b9e33da199a2a5a5d125ef31bf Mon Sep 17 00:00:00 2001
From: Peter Steinberger <steipete@gmail.com>
Date: Tue, 7 Apr 2026 12:17:53 +0100
Subject: [PATCH] fix: guard normalized allowlist sender lookup

---
 src/plugin-sdk/allow-from.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/plugin-sdk/allow-from.ts b/src/plugin-sdk/allow-from.ts
index a80360b610c..c41426d8b2e 100644
--- a/src/plugin-sdk/allow-from.ts
+++ b/src/plugin-sdk/allow-from.ts
@@ -71,7 +71,7 @@ export function isNormalizedSenderAllowed(params: {
     return true;
   }
   const sender = normalizeOptionalLowercaseString(String(params.senderId));
-  return normalizedAllow.includes(sender);
+  return sender ? normalizedAllow.includes(sender) : false;
 }
 
 type ParsedChatAllowTarget =