Dockhand before 1.0.43 SSRF via /api/templates/compose Endpoint

{
  "id": "7239ca97b333d888dbecc8c07cb6dec7598d8ae75a1bac3f68602ef8ba7abd71",
  "url": "https://osv.dev/vulnerability/CVE-2026-110255",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Dockhand before 1.0.43 SSRF via /api/templates/compose Endpoint",
    "summary": "Finsys Dockhand before 1.0.43 contains a response-disclosing server-side request forgery vulnerability that allows authenticated users to make the server fetch arbitrary URLs by supplying repository URL and stackfile values. Attackers can send stack templates pointing to internal services or cloud metadata endpoints and read the fetched content from the compose response field, exposing credentials and tokens.",
    "evidence": "osv:CVE-2026-110255",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-110255",
      "aliases": [
        "CVE-2026-110255",
        "GHSA-f2mx-74xq-g4p9"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/finsys/dockhand",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "a485c8580b083614a5e11f78b76d0e1a7173d12e"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.0.43"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.0.43"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.0.42",
            "v1.0.41",
            "v1.0.40",
            "v1.0.39",
            "v1.0.38",
            "v1.0.37",
            "v1.0.36",
            "v1.0.35",
            "v1.0.34",
            "v1.0.33",
            "v1.0.32",
            "v1.0.31",
            "v1.0.30",
            "v1.0.29",
            "v1.0.28",
            "v1.0.27",
            "v1.0.26"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-110255.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:23.274649620Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110255.json",
        "https://github.com/Finsys/dockhand/security/advisories/GHSA-f2mx-74xq-g4p9",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-110255",
        "https://www.vulncheck.com/advisories/dockhand-before-1.0.43-ssrf-via-api-templates-compose-endpoint",
        "https://github.com/Finsys/dockhand"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-918"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110255.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-110255",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 489581,
  "published_at": "2026-10-13T19:05:29.158+00:00"
}