Vulnerability · Published Jul 31, 2026 · Assigned by GitHub_M

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

High 8.7

In plain English

A high-severity server-side request forgery in dssrf-js from HackingRepo. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 42% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)8.7High

Exploit odds (30 days)0.5%top 58.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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 packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	dssrf	1.0.5	GHSA-5846-7qm3-r52j

Affected products (as reported)

Vendor	Product	Versions
HackingRepo	dssrf-js	< 1.0.5

Weakness: CWE-918 · Vector: 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

References

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