CVE-2026-54722: dssrf: there a critical security bug with remove_at_symbol_in_string

Severity: high (CVSS 8.7 v4.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-30 · updated 2026-10-23
Weakness: CWE-76

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.

Affected products

HackingRepo dssrf-js: before 1.0.4

References

https://github.com/HackingRepo/dssrf-js/commit/9211f91bf532433a1a1b27d946571546a63664b3
https://github.com/HackingRepo/dssrf-js/issues/97
https://github.com/HackingRepo/dssrf-js/pull/98
https://github.com/HackingRepo/dssrf-js/security/advisories/GHSA-cg4g-m8jx-vjv2
https://github.com/HackingRepo/dssrf-js/security/advisories/GHSA-cg4g-m8jx-vjv2

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