Incorrect Regular Expression Affecting org.webjars.npm:hono package, versions [,4.12.21)


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.24% (16th percentile)

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  • Snyk IDSNYK-JAVA-ORGWEBJARSNPM-19639012
  • published14 Sept 2026
  • disclosed28 May 2026
  • creditoffset

Introduced: 28 May 2026

CVE-2026-47674  (opens in a new tab)
CWE-185  (opens in a new tab)

How to fix?

Upgrade org.webjars.npm:hono to version 4.12.21 or higher.

Overview

org.webjars.npm:hono is an Ultrafast web framework for the Edges

Affected versions of this package are vulnerable to Incorrect Regular Expression via the ip-restriction middleware. An attacker can bypass configured deny rules for IPv6 addresses by submitting non-canonical representations, such as compressed or explicit-zero forms, causing the rule to be skipped.

CVSS Base Scores

version 4.0
version 3.1