CVE-2026-54722: CWE-76: Improper Neutralization of Equivalent Special Elements in HackingRepo dssrf-js
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.
AI Analysis
Technical Summary
The vulnerability in dssrf-js versions before 1.0.4 arises from the is_url_safe function in src/helpers.ts, which strips the '@' userinfo delimiter using remove_at_symbol_in_string before parsing the URL with the new URL constructor. This improper neutralization allows crafted URLs to bypass internal IP validation checks, enabling Server-Side Request Forgery (SSRF) attacks that can reach internal services. The issue is addressed in version 1.0.4 of the library.
Potential Impact
An attacker can craft URLs that bypass internal IP validation in the dssrf-js library, potentially causing clients to make requests to internal services that should be protected. This can lead to unauthorized access to internal network resources, data exposure, or further exploitation within the internal environment.
Mitigation Recommendations
Upgrade to dssrf-js version 1.0.4 or later, where this vulnerability is fixed. Since no official patch or temporary fix is indicated beyond this version update, applying this version is the recommended remediation.
CVE-2026-54722: CWE-76: Improper Neutralization of Equivalent Special Elements in HackingRepo dssrf-js
Description
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.
CVSS v4.0
Score 8.7high
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in dssrf-js versions before 1.0.4 arises from the is_url_safe function in src/helpers.ts, which strips the '@' userinfo delimiter using remove_at_symbol_in_string before parsing the URL with the new URL constructor. This improper neutralization allows crafted URLs to bypass internal IP validation checks, enabling Server-Side Request Forgery (SSRF) attacks that can reach internal services. The issue is addressed in version 1.0.4 of the library.
Potential Impact
An attacker can craft URLs that bypass internal IP validation in the dssrf-js library, potentially causing clients to make requests to internal services that should be protected. This can lead to unauthorized access to internal network resources, data exposure, or further exploitation within the internal environment.
Mitigation Recommendations
Upgrade to dssrf-js version 1.0.4 or later, where this vulnerability is fixed. Since no official patch or temporary fix is indicated beyond this version update, applying this version is the recommended remediation.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-06-15T23:07:33.232Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a6b81699c2644c7f860ea65
Added to database: 07/30/2026, 16:52:57 UTC
Last enriched: 07/30/2026, 17:10:35 UTC
Last updated: 07/30/2026, 23:37:44 UTC
Views: 3
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