Cross-site Scripting (XSS) Affecting logto-1.39 package, versions *


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.01% (3rd percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-LOGTO139-17247811
  • published9 Jun 2026
  • disclosed12 May 2026

Introduced: 12 May 2026

CVE-2026-42338  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

There is no fixed version for Minimos:latest logto-1.39.

NVD Description

Note: Versions mentioned in the description apply only to the upstream logto-1.39 package and not the logto-1.39 package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

ip-address is a library for parsing and manipulating IPv4 and IPv6 addresses in JavaScript. Prior to 10.1.1, Address6.group() and Address6.link() do not HTML-escape attacker-controlled content before embedding it in the HTML strings they return, and AddressError.parseMessage (emitted by the Address6 constructor for invalid input) can contain unescaped attacker-controlled content in one branch. An application that (1) passes untrusted input to Address6 and (2) renders the output of these methods, or the thrown error's parseMessage, as HTML (e.g. via innerHTML) is vulnerable to cross-site scripting. This vulnerability is fixed in 10.1.1.

CVSS Base Scores

version 3.1