CVE-2026-82256

MEDIUM CVSS 4.0: 6.9 EPSS 0.25%
Updated Sep 01, 2026
Payload
Parameter Value
CVSS 6.9 (MEDIUM)
Affected Versions before 2.69.1
Fixed In 2.69.1
Type CWE-400 (Uncontrolled Resource Consumption)
Vendor Payload
Public PoC No

SvelteKit before 2.69.1 fails to properly validate remote form function payload sizes, allowing attackers to crash the Node process by sending large payloads. Repeated exploitation causes denial of service by repeatedly crashing the application process.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
Low
Partial disruption

CVSS Vector v4.0

Vulnerable Products 2

Configuration From (including) Up to (excluding)
Svelte Kit
cpe:2.3:a:svelte:kit:*:*:*:*:*:*:*:*
2.69.1
Svelte Sveltekit
cpe:2.3:a:svelte:sveltekit:*:*:*:*:*:node.js:*:*
2.69.1