dssrf: there a critical security bug with remove_at_symbol_in_string
Priority HIGH 77CWE-76Published · 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 1.0.4, is_url_safe in src/helpers.ts strips the @ userinfo delimiter with remove_at_symbol_in_string before new URL parses the URL, allowing an attacker-controlled URL to bypass internal-IP validation and cause a client using the original URL to reach an internal service. This issue is fixed in version 1.0.4.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0057 47th percentileScored 2026-11-07
Fix Fixed dssrf-js (HackingRepo): 1.0.4dssrf (npm): 1.0.4
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 1.0.4 | 1.0.4 | Patch available | CNA |
| — | dssrf (npm) | before 1.0.4 | 1.0.4 | Patch available | GHSA-cg4g-m8jx-vjv2 |
- dssrf-js VendorHackingRepo Affected before 1.0.4 Fixed in 1.0.4 Patch available CNA
- dssrf (npm) Vendor— Affected before 1.0.4 Fixed in 1.0.4 Patch available GHSA-cg4g-m8jx-vjv2
Remediation
- Fix · CNA dssrf-js (HackingRepo) Fixed in 1.0.4
- Fix · GHSA-cg4g-m8jx-vjv2 dssrf (npm) Fixed in 1.0.4 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-54722
- 2026-10-03 Alias added: GHSA-cg4g-m8jx-vjv2
References
Other 5
- https://github.com/HackingRepo/dssrf-js/security/advisories/GHSA-cg4g-m8jx-vjv2
- https://github.com/HackingRepo/dssrf-js/issues/97
- https://github.com/HackingRepo/dssrf-js/pull/98
- https://github.com/HackingRepo/dssrf-js/commit/9211f91bf532433a1a1b27d946571546a63664b3
- https://github.com/HackingRepo/dssrf-js
More HackingRepo vulnerabilities
- TI-2026-39542 dssrf: any users using 1.1.1.1 DNS is impacted by SSRF CVSS 4.0HIGH 8.7
- TI-2026-32211 dssrf: every IPv6 category bypasses is_url_safe CVSS 4.0HIGH 8.7
Sources
- CVE-2026-54722 · CVE Program
- CVE-2026-54722 · NVD
- FIRST EPSS
- GHSA-cg4g-m8jx-vjv2 · GitHub Advisory Database · CC BY 4.0
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