diff --git a/core.js b/core.js
index d653e66a40..0f5d672dc4 100644
--- a/core.js
+++ b/core.js
@@ -1074,6 +1074,7 @@ async function _fromTokenizer(tokenizer) {
 		await tokenizer.ignore(30);
 		// Search for header should be in first 1KB of file.
 		while (tokenizer.position + 24 < tokenizer.fileInfo.size) {
+			const previousPosition = tokenizer.position;
 			const header = await readHeader();
 			let payload = header.size - 24;
 			if (_check(header.id, [0x91, 0x07, 0xDC, 0xB7, 0xB7, 0xA9, 0xCF, 0x11, 0x8E, 0xE6, 0x00, 0xC0, 0x0C, 0x20, 0x53, 0x65])) {
@@ -1101,6 +1102,10 @@ async function _fromTokenizer(tokenizer) {
 			}
 
 			await tokenizer.ignore(payload);
+
+			if (tokenizer.position <= previousPosition) {
+				break;
+			}
 		}
 
 		// Default to ASF generic extension