CVE-2026-25047
High
Description
deepHas provides a test for the existence of a nested object key and optionally returns that key. A prototype pollution vulnerability exists in version 1.0.7 of the deephas npm package that allows an attacker to modify global object behavior. This issue was fixed in version 1.0.8.
SeverityHigh
CVSS8.8
Exploit probability—
ProductSharpred Deephas
PublishedJan 29, 2026
First seenJan 29, 2026
Weakness typeCWE-1321Prototype pollution
How to fix
Update
- deephas1.0.8 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| sharpred deephas | 1.0.7 | — |
| deephasnpm | v < 1.0.8 | 1.0.8 |
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