CVE-2025-3197
High
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__.
SeverityHigh
CVSS7.3
Exploit probability—
ProductExpand-object
PublishedApr 4, 2025
First seenApr 4, 2025
Weakness typeCWE-1321Prototype pollution
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| expand-objectnpm | v ≤ 0.4.2 | — |
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