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CVE PROGRAM SOURCE RECORD8.2 High

CVE-2026-22803

SvelteKit has a memory amplification DoS in Remote Functions binary form deserializer

Description

SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. From 2.49.0 to 2.49.4, the experimental form remote function uses a binary data format containing a representation of submitted form data. A specially-crafted payload can cause the server to allocate a large amount of memory, causing DoS via memory exhaustion. This vulnerability is fixed in 2.49.5.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

sveltejs kit

  • >= 2.49.0, < 2.49.5affected

References