CVE-2026-82260: Uncontrolled Resource Consumption in sveltejs kit
Description
SvelteKit versions 2.49.0 through 2.52.1 with experimental remote functions and form enabled have a memory exhaustion vulnerability in remote form deserialization. Malformed form data can cause excessive memory allocation, crashing the server and causing denial of service. This issue is fixed in version 2.52.2.
CVSS v4.0
Score 8.7high
Affected software
sveltejs
kit
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-82260 is a high-severity vulnerability affecting SvelteKit (@sveltejs/kit) versions >=2.49.0 and <=2.52.1 when experimental remote functions and form features are enabled. The vulnerability arises from improper handling of remote form deserialization, where malformed form data can trigger uncontrolled resource consumption leading to excessive memory allocation. This can crash the server process, resulting in denial of service. The vulnerability is addressed in version 2.52.2.
Potential Impact
Exploitation of this vulnerability allows an attacker to cause a denial of service by crashing the server through memory exhaustion. This can disrupt availability of services relying on the affected SvelteKit versions with the specified features enabled.
Mitigation Recommendations
Upgrade SvelteKit to version 2.52.2 or later where this vulnerability is fixed. No other mitigations are specified.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-08-28T10:39:30.356Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a916f95acd9273b49cf9327
Added to database: 08/28/2026, 11:23:01 UTC
Last enriched: 10/09/2026, 21:23:43 UTC
Last updated: 10/12/2026, 06:48:19 UTC
Views: 98
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