CVE-2026-82260
High
Description
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.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Sveltekit
PublishedAug 28, 2026
First seenAug 28, 2026
Weakness typeCWE-400Uncontrolled resource consumption
How to fix
Update
- svelte sveltekit2.52.2 or later
- @sveltejs/kit2.52.2 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| svelte sveltekit | 2.49.0 ≤ v < 2.52.2 | 2.52.2 |
| @sveltejs/kitnpm | 2.49.0 ≤ v < 2.52.2 | 2.52.2 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.