Use non-capturing regex for data to prevent memory exhaustion for lon…

…g strings (#4741).
ethers-io · May 29, 2024 · 5463aa0 · 5463aa0
1 parent 8b5dfca
commit 5463aa0
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src.ts/utils/data.ts b/src.ts/utils/data.ts
@@ -31,7 +31,7 @@ function _getBytes(value: BytesLike, name?: string, copy?: boolean): Uint8Array
         return value;
     }
 
-    if (typeof(value) === "string" && value.match(/^0x([0-9a-f][0-9a-f])*$/i)) {
+    if (typeof(value) === "string" && value.match(/^0x(?:[0-9a-f][0-9a-f])*$/i)) {
         const result = new Uint8Array((value.length - 2) / 2);
         let offset = 2;
         for (let i = 0; i < result.length; i++) {