CVE-2026-61704

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Błąd w Link Preview JS umożliwia atakującemu dostęp do wewnętrznych zasobów HTTP.

CVSS
7.5
EPSS
0.4%
Exploit
none
Vendor
Opis źródłowy (NVD)

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.

ssrf Brak patcha
Źródła i daty
ŹródłoWartość
NVD – CVSS7.5
CISA KEV (aktywnie wykorzystywane)Nie
FIRST EPSS (prawdopodobieństwo exploita)0.4%
Opublikowano (NVD)2026-08-20 17:18:51 UTC
Ostatnia modyfikacja (NVD)2026-09-18 20:09:01 UTC
Referencje