CVE-2026-82260

HIGH 7.5

SvelteKit before 2.52.2 Memory Exhaustion via Remote Form Deserialization

CVSS Score

7.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

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:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Affected Versions

sveltejs / kit

2.49.0 < 2.52.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/sveltejs/kit/security/advisories/GHSA-vrhm-gvg7-fpcf vulncheck.com: https://www.vulncheck.com/advisories/sveltekit-before-2.52.2-memory-exhaustion-via-remote-form-deserialization

Credits

elliott-with-the-longest-name-on-github