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Vulnerability record · CVE-2026-54729 · published 31 July 2026

CVE-2026-54729: Server-side request forgery (SSRF) vulnerability

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.

8.7 CVSS 4.0 High EPSS 0.48% · top 61.1% CWE-918 · Server-side request forgery (SSRF) Deferred
8.7CVSS 4.0 base score
0.48%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
4References
10 Sep 2026Last modified by NVD

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/HackingRepo/dssrf-js/commit/668c21792cd1252baf779a176aa652e2b4c0067d
https://github.com/HackingRepo/dssrf-js/pull/102
https://github.com/HackingRepo/dssrf-js/security/advisories/GHSA-5846-7qm3-r52j
https://github.com/HackingRepo/dssrf-js/security/advisories/GHSA-5846-7qm3-r52j

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-54729), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.