From 5609bab1acefd005e0eca4f97e980efac8e1cb74 Mon Sep 17 00:00:00 2001
From: fiatjaf <fiatjaf@gmail.com>
Date: Wed, 29 Jul 2026 16:30:46 -0300
Subject: [PATCH] check length on isHex32().

fixes https://github.com/nbd-wtf/nostr-tools/issues/540
---
 utils.ts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/utils.ts b/utils.ts
index 59a8dec..3c55f7f 100644
--- a/utils.ts
+++ b/utils.ts
@@ -128,6 +128,7 @@ export function mergeReverseSortedLists(list1: NostrEvent[], list2: NostrEvent[]
  * Checks if a string is a 64-char lowercase hex string as most Nostr ids and pubkeys.
  */
 export function isHex32(input: string): boolean {
+  if (input.length !== 64) return false
   for (let i = 0; i < 64; i++) {
     let cc = input.charCodeAt(i)
     if (isNaN(cc) || cc < 48 || cc > 102 || (cc > 57 && cc < 97)) {