From 3d8de1a34ec5a5e25ce4509baaa7072218e880ae Mon Sep 17 00:00:00 2001
From: Olga Kunyavskaya <olga.kunyavskaya@aurora.dev>
Date: Tue, 7 Nov 2023 14:59:51 +0200
Subject: [PATCH] check key len

---
 contracts/near/eth-prover/src/lib.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/contracts/near/eth-prover/src/lib.rs b/contracts/near/eth-prover/src/lib.rs
index 79d22337..668664f5 100644
--- a/contracts/near/eth-prover/src/lib.rs
+++ b/contracts/near/eth-prover/src/lib.rs
@@ -336,7 +336,8 @@ impl EthProver {
                 }
             } else {
                 // Extension node
-                if path.as_slice() == &key[key_index..key_index + path.len()] {
+                if key_index + path.len() <= key.len() &&
+                    path.as_slice() == &key[key_index..key_index + path.len()] {
                     let new_expected_root = get_vec(&node, 1);
                     Self::_verify_trie_proof(
                         new_expected_root,