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 Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
sveltejs kit unaffected
Version Status Constraints
0 affected < 2.69.1
2.69.1 unaffected —

No data.

No data.

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Project Subscriptions

Vendors Products
Svelte Subscribe
Kit Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

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

Fri, 28 Aug 2026 11:30:00 +0000

Type Values Removed Values Added
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.
Title SvelteKit before 2.69.1 Denial of Service via Remote Form
First Time appeared Svelte
Svelte kit
Weaknesses CWE-400
CPEs cpe:2.3:a:svelte:kit:*:*:*:*:*:*:*:*
Vendors & Products Svelte
Svelte kit
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-08-28T10:49:40.634Z

Reserved: 2026-08-28T10:39:30.355Z

Link: CVE-2026-82256

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-28T12:16:38.457

Modified: 2026-08-28T12:16:38.457

Link: CVE-2026-82256

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses