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    4 vulnerabilities by OP-Engineering

    CVE-2026-61704 (GCVE-0-2026-61704)

    Vulnerability from nvd – Published: 2026-08-20 16:21 – Updated: 2026-08-25 15:03
    VLAI
    Title
    link-preview-js DNS Rebinding SSRF Bypass / Incomplete Fix for CVE-2026-43897
    Summary
    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.
    Severity
    7.5 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-08-25 15:03 UTC
    CWE
    • CWE-918 - Server-Side Request Forgery (SSRF)
    Assigner
    References
    Impacted products
    Show details on NVD website
    To clipboard 

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    CVE-2026-43897 (GCVE-0-2026-43897)

    Vulnerability from nvd – Published: 2026-05-11 21:14 – Updated: 2026-05-12 16:40
    VLAI
    Title
    Link Preview JS: vunerable to IPv6 and internal loopback attacks
    Summary
    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.
    Severity
    8.7 (High)
    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
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-05-12 16:39 UTC
    CWE
    • CWE-918 - Server-Side Request Forgery (SSRF)
    Assigner
    References
    Impacted products
    Show details on NVD website
    To clipboard 

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    CVE-2026-61704 (GCVE-0-2026-61704)

    Vulnerability from cvelistv5 – Published: 2026-08-20 16:21 – Updated: 2026-08-25 15:03
    VLAI
    Title
    link-preview-js DNS Rebinding SSRF Bypass / Incomplete Fix for CVE-2026-43897
    Summary
    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.
    Severity
    7.5 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-08-25 15:03 UTC
    CWE
    • CWE-918 - Server-Side Request Forgery (SSRF)
    Assigner
    References
    Impacted products
    Show details on NVD website
    To clipboard 

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    CVE-2026-43897 (GCVE-0-2026-43897)

    Vulnerability from cvelistv5 – Published: 2026-05-11 21:14 – Updated: 2026-05-12 16:40
    VLAI
    Title
    Link Preview JS: vunerable to IPv6 and internal loopback attacks
    Summary
    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.
    Severity
    8.7 (High)
    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
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-05-12 16:39 UTC
    CWE
    • CWE-918 - Server-Side Request Forgery (SSRF)
    Assigner
    References
    Impacted products
    Show details on NVD website
    To clipboard 

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            "x_refsource_MISC"
          ],
          "url": "https://github.com/OP-Engineering/link-preview-js/releases/tag/4.0.1"
        }
      ],
      "source": {
        "advisory": "GHSA-4gp8-rjrq-ch6q",
        "discovery": "UNKNOWN"
      },
      "title": "Link Preview JS: vunerable to IPv6 and internal loopback attacks"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-43897",
    "datePublished": "2026-05-11T21:14:40.495Z",
    "dateReserved": "2026-05-04T16:11:33.085Z",
    "dateUpdated": "2026-05-12T16:40:05.641Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}