CVE-2026-43897

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Source
https://cve.org/CVERecord?id=CVE-2026-43897
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43897.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-43897
Aliases
Published
2026-05-11T21:14:40Z
Modified
2026-10-21T02:57:54Z
Severity
  • 8.7 (High) CVSS_V4 - 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 CVSS Calculator
Summary
Link Preview JS: vunerable to IPv6 and internal loopback attacks
Details

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.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-918"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43897.json"
}
References

Affected packages

Git / github.com/op-engineering/link-preview-js

Affected ranges

Type
GIT
Repo
https://github.com/op-engineering/link-preview-js
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
c163e0f6c300a178c66af96c5c9a179668063fb0
Fixed
4396d48909fab37553c0e93e26447fe218363ede
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "4.0.1"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        },
        {
            "range":  [
                {
                    "fixed":  "4396d48909fab37553c0e93e26447fe218363ede"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        },
        {
            "original_tag":  "4.0.1",
            "range":  [
                {
                    "fixed":  "c163e0f6c300a178c66af96c5c9a179668063fb0"
                }
            ],
            "source":  "REFERENCES_TAG"
        }
    ]
}

Affected versions

1.*
1.3.4
1.4.3
1.5.0
1.6.0
2.*
2.1.1
2.1.2
3.*
3.0.0
3.0.10
3.0.11
3.0.12
3.0.13
3.0.14
3.0.15
3.0.5
3.0.6
3.0.7
3.0.8
3.0.9
3.1.0
3.2.0
4.*
4.0.0
V1.*
V1.2.0
v1.*
v1.0.4
v1.0.7
v1.1.0
v1.1.2
v1.2.1
v1.3.0
v1.3.1
v1.3.5
v1.4.0
v2.*
v2.0.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43897.json"