dssrf: any users using 1.1.1.1 DNS is impacted by SSRF
Priority HIGH 77CWE-918Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub.
Summary
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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0048 41st percentileScored 2026-11-08
Fix Fixed dssrf-js (HackingRepo): 1.0.5dssrf (npm): 1.0.5
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| HackingRepo | dssrf-js | before 1.0.5 | 1.0.5 | Patch available | CNA |
| — | dssrf (npm) | before 1.0.5 | 1.0.5 | Patch available | GHSA-5846-7qm3-r52j |
- dssrf-js VendorHackingRepo Affected before 1.0.5 Fixed in 1.0.5 Patch available CNA
- dssrf (npm) Vendor— Affected before 1.0.5 Fixed in 1.0.5 Patch available GHSA-5846-7qm3-r52j
Remediation
- Fix · CNA dssrf-js (HackingRepo) Fixed in 1.0.5
- Fix · GHSA-5846-7qm3-r52j dssrf (npm) Fixed in 1.0.5 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-54729
- 2026-10-03 Alias added: GHSA-5846-7qm3-r52j
References
More HackingRepo vulnerabilities
- TI-2026-39536 dssrf: there a critical security bug with remove_at_symbol_in_string CVSS 4.0HIGH 8.7
- TI-2026-32211 dssrf: every IPv6 category bypasses is_url_safe CVSS 4.0HIGH 8.7
Sources
- CVE-2026-54729 · CVE Program
- CVE-2026-54729 · NVD
- FIRST EPSS
- GHSA-5846-7qm3-r52j · GitHub Advisory Database · CC BY 4.0
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