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Memory exhaustion in SvelteKit remote form deserialization (experimental only)

Moderate
elliott-with-the-longest-name-on-github published GHSA-vrhm-gvg7-fpcf Feb 18, 2026

Package

npm @sveltejs/kit (npm)

Affected versions

>=2.49.0, <=2.52.1

Patched versions

2.52.2

Description

Versions of @sveltejs/kit prior to 2.52.2 with remote functions enabled can be vulnerable to memory exhaustion. Malformed form data can cause the server process to crash due to excessive memory allocation, resulting in denial of service.

Only applications using both experimental.remoteFunctions and form are vulnerable.

Severity

Moderate

CVE ID

No known CVE

Weaknesses

No CWEs

Credits