CVE-2026-54729

dssrf: any users using 1.1.1.1 DNS is impacted by SSRF

State
Published
Severity
8.7 High
Published
Jul 31, 2026
Updated
Jul 31, 2026
Reserved
Jun 15, 2026

Read the record on cve.org

Description

DSSRF is a Node.js library that provides a wide range of utilities and advanced SSRF defense checks. Prior to 1.0.5, is_url_safe can treat localhost as safe when DNS resolver 1.1.1.1 returns NXDOMAIN because dns.resolve4 yields no address and no dns.lookup fallback occurs, allowing server-side request forgery. This issue is fixed in version 1.0.5.

Scores

CVSSScoreVectorSource
4.08.7 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:NGitHub_M

Weaknesses

  • CWE-918 Server-Side Request Forgery (SSRF)

Affected Products

ProductVersions
dssrf-jsHackingRepo
  • < 1.0.5Affected

References

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