Server-side Request Forgery (SSRF) Affecting link-preview-js package, versions <4.0.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published6 May 2026
- disclosed5 May 2026
- creditAndrew-most-likely
Introduced: 5 May 2026
NewCVE-2026-43897 (opens in a new tab)How to fix?
Upgrade link-preview-js to version 4.0.1 or higher.
Overview
link-preview-js is a Javascript module to extract and fetch HTTP link information from blocks of text.
Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) via improper validation of IPv6 and internal addresses during the DNS resolution process. An attacker can access internal network resources or leak sensitive internal data by supplying specially crafted addresses that resolve to internal IPs or loopback interfaces.
Workaround
This vulnerability can be mitigated by performing custom validation of addresses before fetching content.