Versions of the package expand-object from 0.0.0 to 0.4.2 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.
{
"nvd_published_at": "2025-04-04T05:15:46Z",
"github_reviewed_at": "2025-04-04T18:24:05Z",
"cwe_ids": [
"CWE-1321"
],
"github_reviewed": true,
"severity": "MODERATE"
}