Rendertron versions prior to 3.0.0 are are susceptible to a Server-Side Request Forgery (SSRF) attack. An attacker can use a specially crafted webpage to force a rendertron headless chrome process to render internal sites it has access to, and display it as a screenshot. Suggested mitigations are to upgrade your rendertron to version 3.0.0, or, if you cannot update, to secure the infrastructure to limit the headless chrome's access to your internal domain.
{
"nvd_published_at": "2021-02-23T12:15:00Z",
"github_reviewed": true,
"cwe_ids": [
"CWE-918"
],
"github_reviewed_at": "2021-02-24T06:59:10Z",
"severity": "MODERATE"
}