GHSA-VRHM-GVG7-FPCF
Vulnerability from github – Published: 2026-02-19 20:29 – Updated: 2026-02-19 20:29
VLAI
Summary
Memory exhaustion in SvelteKit remote form deserialization (experimental only)
Details
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.
Severity
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 2.52.1"
},
"package": {
"ecosystem": "npm",
"name": "@sveltejs/kit"
},
"ranges": [
{
"events": [
{
"introduced": "2.49.0"
},
{
"fixed": "2.52.2"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [],
"database_specific": {
"cwe_ids": [
"CWE-770"
],
"github_reviewed": true,
"github_reviewed_at": "2026-02-19T20:29:42Z",
"nvd_published_at": null,
"severity": "MODERATE"
},
"details": "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.\n\nOnly applications using both `experimental.remoteFunctions` and `form` are vulnerable.",
"id": "GHSA-vrhm-gvg7-fpcf",
"modified": "2026-02-19T20:29:42Z",
"published": "2026-02-19T20:29:42Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/sveltejs/kit/security/advisories/GHSA-vrhm-gvg7-fpcf"
},
{
"type": "WEB",
"url": "https://github.com/sveltejs/kit/commit/f47c01bd8100328c24fdb8522fe35913b0735f35"
},
{
"type": "PACKAGE",
"url": "https://github.com/sveltejs/kit"
},
{
"type": "WEB",
"url": "https://github.com/sveltejs/kit/releases/tag/@sveltejs/kit@2.52.2"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "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",
"type": "CVSS_V4"
}
],
"summary": " Memory exhaustion in SvelteKit remote form deserialization (experimental only)"
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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