CVE-2026-43897
High
Description
Link Preview JS extracts web links information. Prior to 4.0.1, the library did not check for IPv6 loopback attacks. There was also a DNS attack, where an address could be resolved into an internal IP. This could cause internal data leaks. This vulnerability is fixed in 4.0.1.
SeverityHigh
CVSS8.7
Exploit probability—
ProductLink-preview-js
PublishedMay 11, 2026
First seenMay 11, 2026
Weakness typeCWE-918Server-side request forgery (SSRF)
How to fix
Update
- link-preview-js4.0.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| link-preview-jsnpm | v < 4.0.1 | 4.0.1 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.