A crafted request to the public first-register operation can be used to perform a RCE exploit.
You are affected if:
In the patched version data submission to create first user is properly sanitized.
Users should upgrade Payload packages to >= 3.90.0 or >= 4.0.0-canary.34.
{
"cwe_ids": [
"CWE-1321",
"CWE-94"
],
"github_reviewed": true,
"github_reviewed_at": "2026-10-07T20:29:58Z",
"nvd_published_at": "2026-10-06T17:17:21Z",
"severity": "HIGH"
}