MaxKB < 2.10.0 - Server-Side Request Forgery via downloadCallbackUrl and download_url Parameters

{
  "id": "cdfc0ce994a61c8883659cc5e8d8e12612c0b79320fd16e489a1f8132761c22c",
  "url": "https://osv.dev/vulnerability/CVE-2026-56779",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "MaxKB < 2.10.0 - Server-Side Request Forgery via downloadCallbackUrl and download_url Parameters",
    "summary": "MaxKB before 2.10.0 contains a server-side request forgery vulnerability in tool creation and update endpoints that allows authenticated users to make arbitrary server requests by supplying unvalidated downloadCallbackUrl and download_url parameters. Attackers with default workspace USER role can exploit this to access internal network services by providing malicious URLs to the ToolSerializer endpoints.",
    "evidence": "osv:CVE-2026-56779",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-56779",
      "aliases": [
        "CVE-2026-56779"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/1panel-dev/maxkb",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "38b14370988d20100f91444572e26f8a400828be"
                },
                {
                  "fixed": "6c156afc656afa62ea4280e504a06ac1c9696b36"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.10.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "fixed": "6c156afc656afa62ea4280e504a06ac1c9696b36"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.9.2",
            "v2.9.1",
            "v2.9.0",
            "v2.8.1",
            "v2.8.0",
            "v2.7.0",
            "v2.6.1",
            "v2.6.0",
            "v2.5.0",
            "v2.4.0",
            "v2.3.0",
            "v2.2.0",
            "v2.1.0",
            "v2.0.2",
            "v2.0.1",
            "v2.0.0",
            "v1.10.4-lts",
            "v1.10.3-lts",
            "v1.10.2-lts",
            "v1.10.1-lts",
            "v1.10.0-lts",
            "v1.9.0",
            "v1.7.0",
            "v1.6.1",
            "v1.6.0",
            "v1.5.0",
            "v1.4.0",
            "v1.3.0",
            "v1.2.1",
            "v1.2.0",
            "v1.1.3",
            "v1.1.2",
            "v1.1.1",
            "v1.1.0",
            "v1.0.1",
            "v1.0.0",
            "v0.9.1",
            "v0.9.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-56779.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:29.736871178Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56779.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-56779",
        "https://www.vulncheck.com/advisories/maxkb-server-side-request-forgery-via-downloadcallbackurl-and-download-url-parameters",
        "https://github.com/1Panel-dev/MaxKB/commit/6c156afc656afa62ea4280e504a06ac1c9696b36",
        "https://github.com/1Panel-dev/MaxKB",
        "https://github.com/1Panel-dev/MaxKB/issues/6272"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-918"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56779.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-56779",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 496789,
  "published_at": "2026-06-25T18:11:12.206+00:00"
}