Hoppscotch: Admin RCE via MAILER_SMTP_URL nodemailer sendmail-transport injection

{
  "id": "7b9c8566a919c9b91c141670b84ade1acfce96bb3bad0f67cec9ba9e14ccabe9",
  "url": "https://osv.dev/vulnerability/CVE-2026-59721",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Hoppscotch: Admin RCE via MAILER_SMTP_URL nodemailer sendmail-transport injection",
    "summary": "Hoppscotch is an open source API development ecosystem. Prior to 2026.6.0, the updateInfraConfigs GraphQL mutation in admin/infra.resolver.ts accepts an attacker-controlled MAILER_SMTP_URL value, and validateSMTPUrl in utils.ts permits path, query, or fragment content that nodemailer parses into sendmail transport options, allowing an admin to execute arbitrary commands as root in the backend container after restart and mail sending. This issue is fixed in version 2026.6.0.",
    "evidence": "osv:CVE-2026-59721",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-59721",
      "aliases": [
        "CVE-2026-59721",
        "GHSA-v7q6-r45w-2c6r"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/hoppscotch/hoppscotch",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "afc2cf181c16e56647b099e5d18cfe55710c6cdd"
                },
                {
                  "fixed": "73a88c82b1b2cada26cc4b2bc095b54554242239"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2026.6.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "fixed": "73a88c82b1b2cada26cc4b2bc095b54554242239"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "afc2cf181c16e56647b099e5d18cfe55710c6cdd"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "2026.6.0"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2026.5.0",
            "2026.4.0",
            "2026.3.1",
            "2026.3.0",
            "2026.2.1",
            "2026.2.0",
            "2026.1.1",
            "2026.1.0",
            "2025.12.1",
            "2025.12.0",
            "2025.11.2",
            "2025.11.1",
            "2025.11.0",
            "2025.10.1",
            "2025.10.0",
            "2025.9.2",
            "2025.9.1",
            "2025.9.0",
            "2025.8.1",
            "2025.8.0",
            "2025.7.1",
            "2025.7.0",
            "2025.6.1",
            "2025.6.0",
            "2025.5.1",
            "2025.5.0",
            "2025.4.0",
            "2025.3.2",
            "2025.3.1",
            "2025.3.0",
            "2025.2.1",
            "2025.2.0",
            "2025.1.1",
            "2025.1.0",
            "2024.12.2",
            "2024.12.1",
            "2024.12.0",
            "2024.11.0",
            "2024.10.1",
            "2024.10.0",
            "2024.9.2",
            "2024.9.1",
            "2024.9.0",
            "2024.8.3",
            "2024.8.2",
            "2024.8.1",
            "2024.8.0",
            "2024.7.1",
            "2024.7.0",
            "2024.6.0",
            "2024.3.3",
            "2024.3.2",
            "2024.3.1",
            "2024.3.0",
            "2023.12.3",
            "2023.12.2",
            "2023.12.1",
            "2023.12.0",
            "2023.8.2",
            "2023.8.1",
            "2023.8.0",
            "2023.4.5",
            "2023.4.4",
            "2023.4.3",
            "2023.4.2",
            "2023.4.1",
            "2023.4.0",
            "v3.0.1",
            "v3.0.0",
            "v2.2.1",
            "v2.2.0",
            "v2.1.0",
            "v2.0.0",
            "v1.12.0",
            "v1.10.0",
            "v1.9.9",
            "v1.9.7",
            "v1.9.5",
            "v1.9.0",
            "v1.5.0",
            "v1.0.0",
            "v0.1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-59721.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:37.421854975Z",
      "provider": "osv",
      "references": [
        "https://github.com/hoppscotch/hoppscotch/releases/tag/2026.6.0",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59721.json",
        "https://github.com/hoppscotch/hoppscotch/security/advisories/GHSA-v7q6-r45w-2c6r",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-59721",
        "https://github.com/hoppscotch/hoppscotch/commit/73a88c82b1b2cada26cc4b2bc095b54554242239",
        "https://github.com/hoppscotch/hoppscotch/pull/6413"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-77",
          "CWE-78",
          "CWE-915"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59721.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-59721",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 504787,
  "published_at": "2026-07-09T17:24:46.098+00:00"
}