Description


msgpack5 is a msgpack v5 implementation for node.js and the browser. Prior to 6.1.0, decoding a negative signed 64-bit integer modifies the corresponding bytes in the caller-provided input buffer while computing the value. Applications that retain or reuse encoded input for integrity checks, logging, or later processing can observe silently corrupted data, while positive integers and other MessagePack value types are unaffected. This issue is fixed in version 6.1.0.

Related CPE's


Could not find any relations

Weaknesses



CWE-471

CVSS impact metrics


CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

3.7 · Low

Information


Source identifier

[email protected]

Vulnerability status

Deferred

Published

2026-10-08T17:17:15.390Z

15 hours ago

Last modified

2026-10-08T20:48:36.970Z

12 hours ago