CVE-2026-54729: dssrf: any users using 1.1.1.1 DNS is impacted by SSRF

Severity: high (CVSS 8.7 v4.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-31 · updated 2026-10-23
Weakness: CWE-918

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.

Affected products

HackingRepo dssrf-js: before 1.0.5

References

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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