From 4c5e3bf6a9070878c684ae8d029451178201d428 Mon Sep 17 00:00:00 2001
From: Diana Carvalho <diana@propellerheads.xyz>
Date: Thu, 13 Feb 2025 09:46:14 +0000
Subject: [PATCH] fix: Verify that the executor exists in the uni v4 callback

--- don't change below this line ---
ENG-4223 Took 10 minutes
---
 foundry/src/TychoRouter.sol | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/foundry/src/TychoRouter.sol b/foundry/src/TychoRouter.sol
index 36e3499..9d77dec 100644
--- a/foundry/src/TychoRouter.sol
+++ b/foundry/src/TychoRouter.sol
@@ -453,6 +453,10 @@ contract TychoRouter is
         address executor = address(uint160(bytes20(data[data.length - 20:])));
         bytes memory protocolData = data[:data.length - 24];
 
+        if (!executors[executor]) {
+            revert ExecutionDispatcher__UnapprovedExecutor();
+        }
+
         // slither-disable-next-line controlled-delegatecall,low-level-calls
         (bool success,) = executor.delegatecall(
             abi.encodeWithSelector(selector, protocolData)