CVE-2026-58168 json
DeepTutor < 1.4.10 - Insecure Default Grants Unrestricted MCP Tool Access to Non-Admin Users
published 2026-06-30 4 mo ago modified 2026-11-08 27 h ago also EUVD-2026-40375 , GHSA-jg88-rvpc-qvxj , PYSEC-2026-4206
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 35%
- public exploits
- 0
- none known
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.
Patch / fix
- pypi deeptutor 1.4.10
- HKUDS DeepTutor 1.4.10
- github.com/HKUDS/DeepTutor@9004637 commit
- github.com/HKUDS/DeepTutor#579 pull request
- github.com/HKUDS/DeepTutor/releases/tag/v1.4.10 release
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- total
- Assessed
- 4 mo ago
Exploit prediction
0.41% chance of exploitation in the next 30 days, higher than 35% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/HKUDS/DeepTutor/pull/579 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CNA | 4.0 | 7.7 | 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 |
| GitHub | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CNA | 4.0 | 7.7 | 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| OSV | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | deeptutor | <1.4.10 |
1.4.10 |
Affected products
- HKUDS DeepTutor
Classification
- Weakness
-
- CWE-862 Missing Authorization
References
-
github.com
/HKUDS/DeepTutor/pull/579
issue-tracking, patch, exploit, web
-
github.com
/HKUDS/DeepTutor/commit/90046374b3dcd4f8a866d2d64a64440bc08eb2ef
patch, web
-
github.com
/HKUDS/DeepTutor/releases/tag/v1.4.10
release-notes, web
-
vulncheck.com
/advisories/deeptutor-insecure-default-grants-unrestricted-mcp-tool-access-to-non-admin-users
third-party-advisory, web
-
nvd.nist.gov
/vuln/detail/CVE-2026-58168
advisory
-
github.com
/HKUDS/DeepTutor
package
-
pypi.org
/project/deeptutor
package
-
github.com
/advisories/GHSA-jg88-rvpc-qvxj
advisory
Sources
- CVE List CVE-2026-58168
- GitHub Advisory GHSA-jg88-rvpc-qvxj
- NVD CVE-2026-58168
- OSV PYSEC-2026-4206
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