CVE-2026-107298
MEDIUM
NVD
CVSS Score
5.3
Severity
MEDIUM
Published
Oct 08, 2026
Vendor
unknown
Description
msgpack5 is a msgpack v5 implementation for node.js and the browser. Prior to 6.1.0, the array and map decoding paths have no nesting-depth limit, allowing an attacker who can provide MessagePack input to submit deeply nested containers that exhaust the JavaScript call stack and interrupt a process, worker, or request handler. This issue is fixed in version 6.1.0.