Tugtainer has Server-Side Template Injection in notification templates that leads to Remote Code Execution

{
  "id": "616f2f574fb788ac8a5a6e1b3e1fcf6755f26199b0d21d5688b2c24ca6ebbf28",
  "url": "https://osv.dev/vulnerability/CVE-2026-47752",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Tugtainer has Server-Side Template Injection in notification templates that leads to Remote Code Execution",
    "summary": "Tugtainer is a self-hosted app for automating updates of Docker containers. Versions prior to 1.30.2 are vulnerable to Server-Side Template Injection (SSTI) in the notification template feature. The `title_template` and `body_template` fields are rendered using an unsandboxed `jinja2.Environment`, allowing any authenticated user to execute arbitrary OS commands as root inside the container. Version 1.30.2 fixes the issue.",
    "evidence": "osv:CVE-2026-47752",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2026-47752",
      "aliases": [
        "CVE-2026-47752",
        "GHSA-g2cj-2x47-78vq"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/quenary/tugtainer",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "eaecc5566625b1f502b1851552382c3f71a1068a"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.30.2"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.30.2"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.30.1",
            "v1.30.0",
            "v1.29.1",
            "v1.29.0",
            "v1.28.3",
            "v1.28.2",
            "v1.28.1",
            "v1.28.0",
            "v1.27.0",
            "v1.26.0",
            "v1.25.1",
            "v1.25.0",
            "v1.24.1",
            "v1.24.0",
            "v1.23.1",
            "v1.23.0",
            "v1.22.0",
            "v1.21.1",
            "v1.21.0",
            "v1.20.0",
            "v1.19.0",
            "v1.18.0",
            "v1.17.5",
            "v1.17.4",
            "v1.17.3",
            "v1.17.2",
            "v1.17.1",
            "v1.17.0",
            "v1.16.1",
            "v1.16.0",
            "v1.15.2",
            "v1.15.1",
            "v1.15.0",
            "v1.14.4",
            "v1.14.3",
            "v1.14.2",
            "v1.14.1",
            "v1.14.0",
            "v1.13.1",
            "v1.13.0",
            "v1.12.2",
            "v1.12.1",
            "v1.12.0",
            "v1.11.0",
            "v1.10.0",
            "v1.9.0",
            "v1.8.0",
            "v1.7.1",
            "v1.7.0",
            "v1.6.0",
            "v1.5.3",
            "v1.5.2",
            "v1.5.1",
            "v1.5.0",
            "v1.4.2",
            "v1.4.1",
            "v1.4.0",
            "v1.3.0",
            "v1.2.3",
            "v1.2.2",
            "v1.2.1",
            "v1.2.0",
            "v1.1.6",
            "v1.1.5",
            "v1.1.4",
            "v1.1.3",
            "v1.1.2",
            "v1.1.1",
            "v1.1.0",
            "v1.0.3",
            "v1.0.2",
            "v1.0.1",
            "v1.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-47752.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:25.708256300Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47752.json",
        "https://github.com/Quenary/tugtainer/security/advisories/GHSA-g2cj-2x47-78vq",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-47752"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-1336"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47752.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-47752",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 492532,
  "published_at": "2026-07-23T16:57:54.967+00:00"
}