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MEDIUM · 5.3

CVE-2026-82256

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 se...

Vulnerability Description

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.

CVSS Score

5.3

MEDIUM

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 Products

VendorProductVersions
SvelteSveltekit< 2.69.1

Related Weaknesses (CWE)

CWE-400

References

FAQ

What is CVE-2026-82256?

CVE-2026-82256 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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 se...

How severe is CVE-2026-82256?

CVE-2026-82256 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-82256?

Check the references section above for vendor advisories and patch information. Affected products include: Svelte Sveltekit.