CVE-2026-107298

CVE-2026-107298 · msgpack5: Deeply nested input can exhaust the decoder stack

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 5.3 · Medium · EPSS 0.4% · Fix available

Published

2026-10-08T17:08:22.022Z

Updated

2026-10-09T11:39:42.593Z

Stack: node

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