CVE-2026-82256

MEDIUM 5.3

SvelteKit before 2.69.1 Denial of Service via Remote Form

CVSS Score

5.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-400
Vendor	sveltejs
Product	kit
Published	Aug 28, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Affected Versions

sveltejs / kit

0 < 2.69.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/sveltejs/kit/security/advisories/GHSA-wqjv-9729-c5q2 vulncheck.com: https://www.vulncheck.com/advisories/sveltekit-before-2.69.1-denial-of-service-via-remote-form