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CVE-2026-43897

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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:e928aed458e9090ea18cdd6af9e49f73f877439b63602f50f1e9db88ca25b5ed
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"link-preview-js","vendor":"OP-Engineering","versions":[{"status":"affected","version":"< 4.0.1"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:851d7687125326f566e4c7bcfb62d348c4c3878f250cef3606146dd1e9b708ab · sha256:be5e3d8262cc6463… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.7,"baseSeverity":"HIGH","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"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","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:851d7687125326f566e4c7bcfb62d348c4c3878f250cef3606146dd1e9b708ab · sha256:be5e3d8262cc6463… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-918","description":"CWE-918: Server-Side Request Forgery (SSRF)","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:851d7687125326f566e4c7bcfb62d348c4c3878f250cef3606146dd1e9b708ab · sha256:be5e3d8262cc6463… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"name":"https://github.com/OP-Engineering/link-preview-js/commit/4396d48909fab37553c0e93e26447fe218363ede","tags":["x_refsource_MISC"],"url":"https://github.com/OP-Engineering/link-preview-js/commit/4396d48909fab37553c0e93e26447fe218363ede"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:851d7687125326f566e4c7bcfb62d348c4c3878f250cef3606146dd1e9b708ab · sha256:be5e3d8262cc6463… · /containers/cna/references/2
{"name":"https://github.com/OP-Engineering/link-preview-js/pull/179","tags":["x_refsource_MISC"],"url":"https://github.com/OP-Engineering/link-preview-js/pull/179"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:851d7687125326f566e4c7bcfb62d348c4c3878f250cef3606146dd1e9b708ab · sha256:be5e3d8262cc6463… · /containers/cna/references/1
{"name":"https://github.com/OP-Engineering/link-preview-js/releases/tag/4.0.1","tags":["x_refsource_MISC"],"url":"https://github.com/OP-Engineering/link-preview-js/releases/tag/4.0.1"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:851d7687125326f566e4c7bcfb62d348c4c3878f250cef3606146dd1e9b708ab · sha256:be5e3d8262cc6463… · /containers/cna/references/3
{"name":"https://github.com/OP-Engineering/link-preview-js/security/advisories/GHSA-4gp8-rjrq-ch6q","tags":["x_refsource_CONFIRM"],"url":"https://github.com/OP-Engineering/link-preview-js/security/advisories/GHSA-4gp8-rjrq-ch6q"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:851d7687125326f566e4c7bcfb62d348c4c3878f250cef3606146dd1e9b708ab · sha256:be5e3d8262cc6463… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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