{"id":"CVE-2026-58168","aliases":["GHSA-jg88-rvpc-qvxj","PYSEC-2026-4206"],"url":"https://o3.security/vulnerability/CVE-2026-58168","summary":"DeepTutor < 1.4.10 - Insecure Default Grants Unrestricted MCP Tool Access to Non-Admin Users","details":"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.","published":"2026-06-30T15:52:22.032Z","modified":"2026-10-21T02:58:46.762188133Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"deeptutor","fixedVersion":"1.4.10"}],"fix":{"url":"https://github.com/HKUDS/DeepTutor/commit/90046374b3dcd4f8a866d2d64a64440bc08eb2ef","label":"HKUDS/DeepTutor@9004637"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/58xxx/CVE-2026-58168.json"},{"type":"ADVISORY","url":"https://github.com/HKUDS/DeepTutor/releases/tag/v1.4.10"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-58168"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/deeptutor-insecure-default-grants-unrestricted-mcp-tool-access-to-non-admin-users"},{"type":"REPORT","url":"https://github.com/HKUDS/DeepTutor/pull/579"},{"type":"FIX","url":"https://github.com/HKUDS/DeepTutor/commit/90046374b3dcd4f8a866d2d64a64440bc08eb2ef"},{"type":"PACKAGE","url":"https://github.com/HKUDS/DeepTutor"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-21T02:58:46.762188133Z"}}