CVE-2025-3197

HighCVSS 7.3/10Last modified Jun 17, 2026

Description

Versions of the package expand-object from 0.0.0 are vulnerable to Prototype Pollution in the expand() function in index.js. This function expands the given string into an object and allows a nested property to be set without checking the provided keys for sensitive properties like __proto__.

Metrics

CVSS 3.1 7.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Weakness enumeration

CWE-1321

Affected software

No affected versions have been published.

Timeline

Published: Apr 4, 2025
Last modified: Jun 17, 2026
NVD status: Deferred

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