Security advisory

{
  "id": "507655125f0c83432500ccda7468a2b11ebe86e138bb8f312f3241dc9b4b57e6",
  "url": "https://osv.dev/vulnerability/CVE-2020-8902",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-8902",
    "summary": "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.",
    "evidence": "osv:CVE-2020-8902",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-8902",
      "aliases": [
        "CVE-2020-8902",
        "GHSA-xr9h-9m79-x29g"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/googlechrome/rendertron",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "8951beb3890b44a479676f128eb4c77857db6d8c"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:google:rendertron:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "3.0.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "8951beb3890b44a479676f128eb4c77857db6d8c"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "3.0.0"
                  }
                ]
              }
            }
          ],
          "versions": [
            "rendertron-middleware@0.1.5",
            "rendertron-middleware@0.1.4",
            "rendertron-middleware@0.1.3",
            "v2.0.0",
            "v1.1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-8902.json"
          }
        }
      ],
      "modified": "2026-10-20T10:52:15.717417757Z",
      "provider": "osv",
      "references": [
        "https://github.com/GoogleChrome/rendertron/releases/tag/3.0.0"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-8902",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 383506,
  "published_at": "2021-02-23T12:15:12.6+00:00"
}