GHSA-866w-xmhq-wj7x

Suggest an improvement
Source
https://github.com/advisories/GHSA-866w-xmhq-wj7x
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-866w-xmhq-wj7x/GHSA-866w-xmhq-wj7x.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-866w-xmhq-wj7x
Aliases
Published
2026-07-24T15:58:05Z
Modified
2026-08-29T03:55:36Z
Severity
  • 4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L CVSS Calculator
Summary
SvelteKit: Prototype pollution in file input deletion path in remote-function forms
Details

If you use remote form functions, have an input field of type file, and accept arbitrary user-controlled path names for the field, then you are vulnerable to a prototype pollution attack where the attacker can remove e.g. methods on the prototype.

Database specific 
{
    "cwe_ids":  [
        "CWE-1321"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-07-24T15:58:05Z",
    "nvd_published_at":  null,
    "severity":  "MODERATE"
}
References

Affected packages

npm / @sveltejs/kit

Package

Name
@sveltejs/kit
View open source insights on deps.dev
Purl
pkg:npm/%40sveltejs/kit

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.69.1

Database specific

last_known_affected_version_range 
"<= 2.69.0"
source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-866w-xmhq-wj7x/GHSA-866w-xmhq-wj7x.json"