CVE-2021-43138

async: Prototype Pollution in async

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Severity

Moderate

Red Hat Product Security

7.8

CVSS 3.1

Review impact separately from score.

Published · April 7, 2022

Updated · November 1, 2026

Description

A vulnerability was found in the async package. This flaw allows a malicious user to obtain privileges via the mapValues() method.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 7.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE-1321 · Improperly Controlled Modification of Object Prototype Attributes