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Critical · 9.8 CVE-2021-26707 EUVD-2021-1394GHSA-r6rj-9ch6-g264

Prototype pollution in Merge-deep

Published Jun 2, 2021 · Updated Aug 3, 2024 · Assigned by mitre

Description

The merge-deep library before 3.0.3 for Node.js can be tricked into overwriting properties of Object.prototype or adding new properties to it. These properties are then inherited by every object in the program, thus facilitating prototype-pollution attacks against applications using this library.

Affected packages

EcosystemPackageAffectedFixedRecord
npm merge-deep < 3.0.3 3.0.3 GHSA-r6rj-9ch6-g264

References