MaxKB sandbox bypass

{
  "id": "d6a5c3ec7223c7bc3986575dafcab895b40ff514c882e1597dbe15f04290b576",
  "url": "https://osv.dev/vulnerability/CVE-2025-53927",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "MaxKB sandbox bypass",
    "summary": "MaxKB is an open-source AI assistant for enterprise. Prior to version 2.0.0, the sandbox design rules can be bypassed because MaxKB only restricts the execution permissions of files in a specific directory. Therefore, an attacker can use the `shutil.copy2` method in Python to copy the command they want to execute to the executable directory. This bypasses directory restrictions and reverse shell. Version 2.0.0 fixes the issue.",
    "evidence": "osv:CVE-2025-53927",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2025-53927",
      "aliases": [
        "CVE-2025-53927",
        "GHSA-5xhm-4j3v-87m4"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/1panel-dev/maxkb",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "c96de7a5f536909aef37fae92f97f62798eb1373"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.0.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "fixed": "c96de7a5f536909aef37fae92f97f62798eb1373"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v2.0.0"
                  },
                  {
                    "cpe": "cpe:2.3:a:maxkb:maxkb:*:*:*:*:lts:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.0.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "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-2025-53927.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:37.628671336Z",
      "provider": "osv",
      "references": [
        "https://github.com/1Panel-dev/MaxKB/releases/tag/v2.0.0",
        "https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-5xhm-4j3v-87m4",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/53xxx/CVE-2025-53927.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-53927"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-94"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/53xxx/CVE-2025-53927.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-53927",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 504727,
  "published_at": "2025-07-17T13:50:18.268+00:00"
}