CVE-2026-61704highCWE-918

CVE-2026-61704: high-severity vulnerability in OP-Engineering link-preview-js

link-preview-js DNS Rebinding SSRF Bypass / Incomplete Fix for CVE-2026-43897

Published · Updated

Follow this CVE+ Monitor link-preview-js+ Monitor link-preview-js

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.5epss 0.5%
Link Preview JS extracts web links information. Prior to 4.0.4, the resolveDNSHost mitigation in index.ts validates one resolved IP address but fetches the original hostname, allowing an attacker-controlled DNS server to return a public address during validation and a loopback or internal address during the final connection. This DNS rebinding condition bypasses the SSRF protection and can cause the server-side preview fetch to reach internal HTTP resources. Redirect handling is affected by the same validation-to-fetch mismatch. This issue is fixed in version 4.0.4.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected products
OP-Engineering · link-preview-js
Related CVEs — OP-Engineering link-preview-js

In the same product, most dangerous first.

CVE-2026-43897HIGHLink Preview JS: vunerable to IPv6 and internal loopback attacksEPSS 0.7%