Access of Resource Using Incompatible Type ('Type Confusion') Affecting @sveltejs/kit package, versions >=2.49.0 <2.52.2
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- published20 Feb 2026
- disclosed19 Feb 2026
- creditElliott Johnson
Introduced: 19 Feb 2026
CVE NOT AVAILABLE CWE-843 (opens in a new tab)Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade @sveltejs/kit to version 2.52.2 or higher.
Overview
@sveltejs/kit is a SvelteKit framework and CLI
Affected versions of this package are vulnerable to Access of Resource Using Incompatible Type ('Type Confusion') via the remote form deserialization. An attacker can cause the server to become unresponsive and exhaust CPU resources by submitting malformed form data.
Note:
This is only exploitable if both experimental.remoteFunctions and form are enabled.