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Vulnerability record · CVE-2026-82260 · published 28 August 2026

CVE-2026-82260: Sveltekit uncontrolled resource consumption vulnerability

Svelte · Sveltekit

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.

8.7 CVSS 4.0 High EPSS 0.49% · top 60.1% CWE-400 · Uncontrolled resource consumption
8.7CVSS 4.0 base score
0.49%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
31 Aug 2026Last modified by NVD

Description

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-82260), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.