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Vulnerability of Node.js msgpack5: read-write access via Prototype Poisoning

Synthesis of the vulnerability 

An attacker can bypass access restrictions via Prototype Poisoning of Node.js msgpack5, in order to read or alter data.
Impacted systems: Nodejs Modules ~ not comprehensive.
Severity of this alert: 2/4.
Creation date: 15/03/2021.
Références of this alert: CVE-2021-21368, NPM-1651, VIGILANCE-VUL-34847.

Description of the vulnerability 

An attacker can bypass access restrictions via Prototype Poisoning of Node.js ms...
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This security vulnerability impacts software or systems such as Nodejs Modules ~ not comprehensive.

Our Vigil@nce team determined that the severity of this computer weakness bulletin is medium.

The trust level is of type confirmed by the editor, with an origin of document.

An attacker with a expert ability can exploit this security note.

Solutions for this threat 

This vulnerability workaround will be public soon.
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