CVE-2026-82261
SvelteKit before 2.52.2 CPU Exhaustion via Remote Form Deserialization
- State
- Published
- Severity
- 8.7 High
- Published
- Aug 28, 2026
- Updated
- Oct 8, 2026
- Reserved
- Aug 28, 2026
Description
SvelteKit (@sveltejs/kit) versions >=2.49.0 and <=2.52.1 with experimental remote functions and form enabled contain a CPU exhaustion vulnerability in form deserialization. An attacker can send malformed form data to cause the server to become unresponsive while processing the request, resulting in denial of service. Fixed in 2.52.2.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | 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 | VulnCheck |
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | VulnCheck |
Weaknesses
- CWE-400 Uncontrolled Resource Consumption
Affected Products
| Product | Versions |
|---|---|
kitsveltejs |
|
References
- GitHub Security Advisory (GHSA-88qp-p4qg-rqm6)vendor-advisory
- VulnCheck Advisory: SvelteKit before 2.52.2 CPU Exhaustion via Remote Form Deserializationthird-party-advisory
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.