# CVE-2026-22803

## Summary

- **CVE ID:** CVE-2026-22803
- **Severity:** HIGH
- **CVSS Score:** 8.2 (CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N)
- **CWE:** CWE-789
- **Published:** Jan 15, 2026
- **Last Modified:** Mar 12, 2026

## 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

- sveltejs — kit (>= 2.49.0, < 2.49.5)

## References

- [CNA](https://github.com/sveltejs/kit/security/advisories/GHSA-j2f3-wq62-6q46)
- [CNA](https://github.com/sveltejs/kit/commit/8ed8155215b9a74012fecffb942ad9a793b274e5)
- [CNA](https://github.com/sveltejs/kit/releases/tag/@sveltejs%2Fadapter-node@5.5.1)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.56%
- **EPSS Percentile:** 44.8

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._