Server-side Request Forgery (SSRF) Affecting org.webjars.npm:ip-address package, versions [10.1.1,10.2.2)


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
0.28% (20th percentile)

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  • Snyk IDSNYK-JAVA-ORGWEBJARSNPM-18516626
  • published10 Aug 2026
  • disclosed3 Aug 2026
  • creditGlitchless

Introduced: 3 Aug 2026

NewCVE-2026-69198  (opens in a new tab)
CWE-918  (opens in a new tab)

How to fix?

Upgrade org.webjars.npm:ip-address to version 10.2.2 or higher.

Overview

org.webjars.npm:ip-address is an A library for parsing IPv4 and IPv6 IP addresses in node and the browser.

Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) in the isInSubnet function. An attacker can bypass network trust-boundary checks by appending a CIDR suffix with a shorter prefix (such as /0) to an internal address, causing classification methods to incorrectly treat internal addresses as external. This allows requests to internal resources to be permitted when they should be blocked.

Note: This is only exploitable if an application accepts a bare address string with a CIDR suffix and passes it directly to the constructor before classification, such as in allow/deny fields, webhook targets, or proxy destinations taken as plain hosts rather than parsed from a URL.

Workaround

This vulnerability can be mitigated by stripping the CIDR suffix from the address before classification, for example by re-parsing the address without the suffix.

CVSS Base Scores

version 4.0
version 3.1