Memory exhaustion in SvelteKit remote form deserialization (experimental only)
Versions of @sveltejs/kit prior to 2.52.2 with remote functions enabled can be vulnerable to memory exhaustion. Malformed form data can cause the server process to crash due to excessive memory allocation, resulting in denial of service.
Only applications using both experimental.remoteFunctions and form are vulnerable.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | @sveltejs/kit | >= 2.49.0, < 2.52.2 | 2.52.2 |
References
- CVSS vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U- Weakness (CWE)
CWE-770- Platform
- npm
- Package
@sveltejs/kit- Disclosed
- 19.02.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-vrhm-gvg7-fpcf - CC BY 4.0
Vulnerability history: @sveltejs/kit
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 17
- First → latest
- 04.2023 08.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 6
- Medium 8
- Low 3
Disclosures per year
- 2023: 2
- 2024: 3
- 2025: 1
- 2026: 11
-
Memory exhaustion in SvelteKit remote form deserialization (experimental only) this entry
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