Inefficient Algorithmic Complexity Affecting @conform-to/dom package, versions >=1.8.0 <1.19.4


Severity

Recommended
0.0
high
0
10

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  • Snyk IDSNYK-JS-CONFORMTODOM-17812748
  • published4 Jul 2026
  • disclosed2 Jul 2026
  • creditUnknown

Introduced: 2 Jul 2026

NewCVE-2026-49250  (opens in a new tab)
CWE-407  (opens in a new tab)

How to fix?

Upgrade @conform-to/dom to version 1.19.4 or higher.

Overview

@conform-to/dom is an A set of opinionated helpers built on top of the Constraint Validation API

Affected versions of this package are vulnerable to Inefficient Algorithmic Complexity in the parseSubmission process. An attacker can cause excessive CPU consumption by submitting forms with a large number of unique field names, leading to resource exhaustion and potential service disruption.

CVSS Base Scores

version 4.0
version 3.1