GHSA-5846-7qm3-r52j

Source

https://github.com/advisories/GHSA-5846-7qm3-r52j

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-5846-7qm3-r52j/GHSA-5846-7qm3-r52j.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-5846-7qm3-r52j

Aliases

CVE-2026-54729

Published

2026-07-31T16:58:42Z

Modified

2026-07-31T17:26:45Z

Severity

8.7 (High) CVSS_V4 - 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 CVSS Calculator

Summary

dssrf: any users using 1.1.1.1 DNS is impacted by SSRF

Details

Summary

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.

POC

Example to simulate 1.1.1.1 in version before 1.5.0 of dssrf:

import { is_url_safe } from '../dist/helpers.js';
import dns from 'dns';


dns.setServers(['1.1.1.1']);

const TARGET = 'http://localhost/admin';

console.log(`Testing: ${TARGET}`);
console.log(`Current DNS Servers: ${dns.getServers()}`);

const result = await is_url_safe(TARGET);

if (result === true) {
    console.log('dssrf treated localhost as SAFE because 1.1.1.1 returned NXDOMAIN.');
} else {
    console.log('dssrf blocked localhost.');
}

Database specific

{
    "cwe_ids": [
        "CWE-918"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-31T16:58:42Z",
    "nvd_published_at": null,
    "severity": "HIGH"
}

References

Affected packages

npm / dssrf

Package

Name: dssrf; View open source insights on deps.dev
Purl: pkg:npm/dssrf

Affected ranges

Type: SEMVER
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

1.0.5

Database specific

last_known_affected_version_range

"<= 1.0.4"

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-5846-7qm3-r52j/GHSA-5846-7qm3-r52j.json"