HighFix available

DeepTutor missing MCP tool authorization allows non-admin users to invoke unrestricted tools

Type: advisorySources: OSV2 source records

DeepTutor before version 1.4.10 contains an authorization bypass vulnerability that allows low-privilege users to invoke unrestricted MCP tools due to the allowed_mcp_tools function returning None instead of a denied result when mcp_tools is omitted from a user's grant in deeptutor/multi_user/tool_access.py. Attackers or prompt-injected content acting within a user session can enumerate and invoke any configured MCP tool, including filesystem, shell, and browser servers, gaining unauthorized access to sensitive deployment resources.

Products: deeptutor
Affected versions: 1.4.0, 1.4.0b0, 1.4.1, 1.4.2, 1.4.3, 1.4.4, 1.4.5, 1.4.6, 1.4.7, 1.4.8, 1.4.9
Fixed versions: 1.4.10
CVEs: CVE-2026-58168
Confirmed fixed CVEs: Not specified
Updated in this feed: 30 Oct 2026, 18:15 UTC · Revision 1

Source evidence

DeepTutor missing MCP tool authorization allows non-admin users to invoke unrestricted tools

core-osv · Original source

Published 30 Jun 2026, 18:31 UTC

osv:GHSA-jg88-rvpc-qvxj

deeptutor

Fixed versions: 1.4.10

Complete source record

{
  "id": "ac2365940bd4d3a7279df97f34013c732998f06d6b641452545cb8fc0a0063ff",
  "url": "https://osv.dev/vulnerability/GHSA-jg88-rvpc-qvxj",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DeepTutor missing MCP tool authorization allows non-admin users to invoke unrestricted tools",
    "summary": "DeepTutor before version 1.4.10 contains an authorization bypass vulnerability that allows low-privilege users to invoke unrestricted MCP tools due to the allowed_mcp_tools function returning None instead of a denied result when mcp_tools is omitted from a user's grant in deeptutor/multi_user/tool_access.py. Attackers or prompt-injected content acting within a user session can enumerate and invoke any configured MCP tool, including filesystem, shell, and browser servers, gaining unauthorized access to sensitive deployment resources.",
    "evidence": "osv:GHSA-jg88-rvpc-qvxj",
    "products": [
      {
        "name": {
          "value": "deeptutor",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.4.10",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "1.4.0",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.4.0b0",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.4.1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.4.2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.4.3",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.4.4",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.4.5",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.4.6",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.4.7",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.4.8",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.4.9",
            "evidence": "/affected/0/versions"
          }
        ]
      }
    ],
    "severity": "high",
    "structured": {
      "id": "GHSA-jg88-rvpc-qvxj",
      "aliases": [
        "CVE-2026-58168",
        "GHSA-jg88-rvpc-qvxj",
        "PYSEC-2026-4206"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        },
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.4.10"
                }
              ]
            }
          ],
          "package": {
            "name": "deeptutor",
            "purl": "pkg:pypi/deeptutor",
            "ecosystem": "PyPI"
          },
          "versions": [
            "1.4.0",
            "1.4.0b0",
            "1.4.1",
            "1.4.2",
            "1.4.3",
            "1.4.4",
            "1.4.5",
            "1.4.6",
            "1.4.7",
            "1.4.8",
            "1.4.9"
          ],
          "database_specific": {
            "source": "https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-jg88-rvpc-qvxj/GHSA-jg88-rvpc-qvxj.json"
          }
        }
      ],
      "modified": "2026-10-15T14:55:53.502546357Z",
      "provider": "osv",
      "references": [
        "https://nvd.nist.gov/vuln/detail/CVE-2026-58168",
        "https://github.com/HKUDS/DeepTutor/pull/579",
        "https://github.com/HKUDS/DeepTutor/commit/90046374b3dcd4f8a866d2d64a64440bc08eb2ef",
        "https://github.com/HKUDS/DeepTutor",
        "https://github.com/HKUDS/DeepTutor/releases/tag/v1.4.10",
        "https://www.vulncheck.com/advisories/deeptutor-insecure-default-grants-unrestricted-mcp-tool-access-to-non-admin-users"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-862"
        ],
        "severity": "HIGH",
        "github_reviewed": true,
        "nvd_published_at": "2026-06-30T17:16:23Z",
        "github_reviewed_at": "2026-10-02T18:27:29Z"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-58168",
        "evidence": "/aliases"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/database_specific/severity"
  },
  "source_id": "core-osv",
  "document_id": 332683,
  "published_at": "2026-06-30T18:31:38+00:00"
}

DeepTutor missing MCP tool authorization allows non-admin users to invoke unrestricted tools

core-osv · Original source

Published 15 Oct 2026, 10:22 UTC

osv:PYSEC-2026-4206

deeptutor

Fixed versions: 1.4.10

Complete source record

{
  "id": "2cd756e4afee9b0f2ee0b6766f93f91b88749ebff0c5b41f54035957ddc46d70",
  "url": "https://osv.dev/vulnerability/PYSEC-2026-4206",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DeepTutor missing MCP tool authorization allows non-admin users to invoke unrestricted tools",
    "summary": "DeepTutor before version 1.4.10 contains an authorization bypass vulnerability that allows low-privilege users to invoke unrestricted MCP tools due to the allowed_mcp_tools function returning None instead of a denied result when mcp_tools is omitted from a user's grant in deeptutor/multi_user/tool_access.py. Attackers or prompt-injected content acting within a user session can enumerate and invoke any configured MCP tool, including filesystem, shell, and browser servers, gaining unauthorized access to sensitive deployment resources.",
    "evidence": "osv:PYSEC-2026-4206",
    "products": [
      {
        "name": {
          "value": "deeptutor",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.4.10",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "1.4.0",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.4.0b0",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.4.1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.4.2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.4.3",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.4.4",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.4.5",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.4.6",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.4.7",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.4.8",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.4.9",
            "evidence": "/affected/0/versions"
          }
        ]
      }
    ],
    "severity": "high",
    "structured": {
      "id": "PYSEC-2026-4206",
      "aliases": [
        "CVE-2026-58168",
        "GHSA-jg88-rvpc-qvxj",
        "PYSEC-2026-4206"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        },
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.4.10"
                }
              ]
            }
          ],
          "package": {
            "name": "deeptutor",
            "purl": "pkg:pypi/deeptutor",
            "ecosystem": "PyPI"
          },
          "versions": [
            "1.4.0",
            "1.4.0b0",
            "1.4.1",
            "1.4.2",
            "1.4.3",
            "1.4.4",
            "1.4.5",
            "1.4.6",
            "1.4.7",
            "1.4.8",
            "1.4.9"
          ],
          "database_specific": {
            "source": "https://github.com/pypa/advisory-database/blob/main/vulns/deeptutor/PYSEC-2026-4206.yaml"
          }
        }
      ],
      "modified": "2026-10-15T14:45:05.890680056Z",
      "provider": "osv",
      "references": [
        "https://nvd.nist.gov/vuln/detail/CVE-2026-58168",
        "https://github.com/HKUDS/DeepTutor/pull/579",
        "https://github.com/HKUDS/DeepTutor/commit/90046374b3dcd4f8a866d2d64a64440bc08eb2ef",
        "https://github.com/HKUDS/DeepTutor",
        "https://github.com/HKUDS/DeepTutor/releases/tag/v1.4.10",
        "https://www.vulncheck.com/advisories/deeptutor-insecure-default-grants-unrestricted-mcp-tool-access-to-non-admin-users",
        "https://pypi.org/project/deeptutor",
        "https://github.com/advisories/GHSA-jg88-rvpc-qvxj"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-58168",
        "evidence": "/aliases"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 332636,
  "published_at": "2026-10-15T10:22:43.280997+00:00"
}