---
id: CVE-2026-82260
title: >-
  SvelteKit (@sveltejs/kit) versions >=2.49.0 and <=2.52.1 with experimental
  remote functions (experimental.remoteFunctions) and form enabled contain a
  memory exhaustion vulnerability in remote form deserialization
summary: >-
  SvelteKit (@sveltejs/kit) versions >=2.49.0 and <=2.52.1 with experimental
  remote functions (experimental.remoteFunctions) and form enabled contain a
  memory exhaustion vulnerability in remote form deserialization. Malformed form
  data can…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-400
vendor: svelte
product: sveltekit
affected:
  - 'sveltekit >= 2.49.0, < 2.52.2'
patched:
  - sveltekit 2.52.2
published: '2026-08-28'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T16:17:48.803'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-82260'
references:
  - url: 'https://github.com/sveltejs/kit/security/advisories/GHSA-vrhm-gvg7-fpcf'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/sveltekit-before-2.52.2-memory-exhaustion-via-remote-form-deserialization
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-08-28T14:42:03.280810Z'
epss: 0.00493
epssPercentile: 0.40382
ingestedAt: '2026-10-08T16:52:14.734Z'
---

## Overview

SvelteKit (@sveltejs/kit) versions >=2.49.0 and <=2.52.1 with experimental remote functions (experimental.remoteFunctions) and form enabled contain a memory exhaustion vulnerability in remote form deserialization. Malformed form data can cause excessive memory allocation, crashing the server process and resulting in denial of service. Fixed in 2.52.2.

## Affected

- `sveltekit >= 2.49.0, < 2.52.2`

## Remediation

Upgrade past the affected range:

- `sveltekit 2.52.2`