Server-side Request Forgery (SSRF) Affecting ip package, versions *
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- published16 Sept 2025
- disclosed16 Sept 2025
- creditUnknown
Introduced: 16 Sep 2025
NewCVE-2025-59436 (opens in a new tab)How to fix?
There is no fixed version for ip.
Overview
ip is a Node library.
Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) via the ip.isPublic() and ip.isPrivate() functions. An attacker can interact with internal network resources by supplying specially crafted IP address such as octal localhost format ("017700000001") that is incorrectly identified as public.
Note:
This issue exists because of an incomplete fix for CVE-2024-29415.
PoC
Test octal localhost bypass:
node -e "const ip=require('ip'); console.log('017700000001 bypass:', ip.isPublic('017700000001'));" - returns true