Verba (goldenverba) Server-Side Request Forgery via /api/connect and Same-Origin Middleware Bypass

{
  "id": "8bc6b7ce59db6027227e5b0cce4923b88a7049523894ccef9ce00ed4bc37100c",
  "url": "https://osv.dev/vulnerability/CVE-2026-65317",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Verba (goldenverba) Server-Side Request Forgery via /api/connect and Same-Origin Middleware Bypass",
    "summary": "Verba RAG application version 2.1.3 contains a server-side request forgery vulnerability combined with a same-origin middleware bypass that allows unauthenticated remote attackers to make the server issue arbitrary HTTP requests by supplying a crafted Origin header and attacker-controlled host and port values. Attackers can bypass the localhost origin check in the API middleware by sending any Origin value prefixed with ' regardless of port, then submit arbitrary host and port parameters to the /api/connect endpoint to cause the server to issue outbound GET requests to attacker-controlled infrastructure.",
    "evidence": "osv:CVE-2026-65317",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2026-65317",
      "aliases": [
        "CVE-2026-65317"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/weaviate/verba",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "6fb7c98d729bca91efe6be7d835dc9d36a53905f"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "2.1.3"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.1.3",
            "v2.1.2",
            "v2.1",
            "v2",
            "v1.0.3",
            "1.0.0",
            "0.4.0",
            "0.3.1",
            "0.3.0",
            "0.2.3"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-65317.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:33.777830222Z",
      "provider": "osv",
      "references": [
        "https://github.com/geo-chen/oss/blob/main/verba.md#finding-2-ssrf--same-origin-middleware-bypass-in-apiconnect----goldenverba",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/65xxx/CVE-2026-65317.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-65317",
        "https://www.vulncheck.com/advisories/verba-goldenverba-server-side-request-forgery-via-api-connect-and-same-origin-middleware-bypass",
        "https://github.com/weaviate/Verba"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-918"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/65xxx/CVE-2026-65317.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-65317",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 501090,
  "published_at": "2026-07-21T21:31:01.979+00:00"
}