GitHub Advisoryadvisory · npm

GHSA-88qp-p4qg-rqm6 CPU exhaustion in SvelteKit remote form deserialization (experimental only)

MEDIUM Published 2026-02-19 Modified 2026-02-19 Official page ↗
Ecosystem
npm
Packages
@sveltejs/kit
Severity
Moderate
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Weaknesses
CWE-843
Reviewed
2026-02-19

Affected packages

• npm @sveltejs/kit: >= 2.49.0, < 2.52.2 → fixed in 2.52.2

Description

Versions of `@sveltejs/kit` prior to 2.52.2 with remote functions enabled are vulnerable to CPU exhaustion. Malformed form data can cause the server to become unresponsive while processing a request, resulting in denial of service. Only applications using both `experimental.remoteFunctions` and `form` are vulnerable.

Related

Weakness · CWE (1)

  • CWE-843 Access of Resource Using Incompatible Type weakness

References