CVE-2026-43897

Link Preview JS: vunerable to IPv6 and internal loopback attacks

CVSS 8.7 HIGHEPSS 0.4%CWE-918

Vexday Risk Score

21Bajo

Decisión SSVC (CISA)

Track

Sin señal de explotación → monitorear

CVSS 8.7EPSS 0.4%KEV nãoPoC —Nuclei —Metasploit —Patch —

Ciclo de vida

11 may 2026Publicada en NVD

Recomendación: Monitorear — sin señal de explotación por ahora.

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Productos afectados

OP-Engineering · link-preview-js

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Referencias

https://github.com/OP-Engineering/link-preview-js/commit/4396d48909fab37553c0e93e26447fe218363ede https://github.com/OP-Engineering/link-preview-js/pull/179 https://github.com/OP-Engineering/link-preview-js/releases/tag/4.0.1 https://github.com/OP-Engineering/link-preview-js/security/advisories/GHSA-4gp8-rjrq-ch6q