High severity · published Aug 28, 2026
CVE-2026-82260
SvelteKit before 2.52.2 Memory Exhaustion via Remote Form Deserialization
7.5
CVSS
0.5%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 42% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KI
kit · sveltejs
2.49.0 before 2.52.1 · source: vendor
SV
Sveltekit · Svelte
2.49.0 before 2.52.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-82260
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-82260
vendor-advisory
https://github.com/sveltejs/kit/security/advisories/GHSA-vrhm-gvg7-fpcf
third-party-advisory
https://www.vulncheck.com/advisories/sveltekit-before-2.52.2-memory-exhaustion-via-remote-form-deserialization
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