High severityNVD Advisory· Published Jul 31, 2026· Updated Jul 31, 2026
dssrf: any users using 1.1.1.1 DNS is impacted by SSRF
CVE-2026-54729
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
dssrfnpm | < 1.0.5 | 1.0.5 |
Affected products
1- Range: <1.0.5
Patches
Vulnerability mechanics
References
4- github.com/advisories/GHSA-5846-7qm3-r52jghsaADVISORY
- github.com/HackingRepo/dssrf-js/commit/668c21792cd1252baf779a176aa652e2b4c0067dghsax_refsource_MISCWEB
- github.com/HackingRepo/dssrf-js/pull/102ghsax_refsource_MISCWEB
- github.com/HackingRepo/dssrf-js/security/advisories/GHSA-5846-7qm3-r52jghsax_refsource_CONFIRMWEB
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