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TI-2025-41041 Aliases CVE-2025-66689GHSA-577g-w45q-4pwf

A path traversal vulnerability exists in Zen MCP Server before 9.8.2 that allows…

Priority MEDIUM 62CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-22 and the CVSS impact.

Summary

A path traversal vulnerability exists in Zen MCP Server before 9.8.2 that allows authenticated attackers to read arbitrary files on the system. The vulnerability is caused by flawed logic in the is_dangerous_path() validation function that uses exact string matching against a blacklist of system directories. Attackers can bypass these restrictions by accessing subdirectories of blacklisted paths.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00571 47th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:busymac:pal_mcp_server:*:*:*:*:*:*:*:*before 9.8.2VulnerableBusymac
  • cpe:2.3:a:busymac:pal_mcp_server:*:*:*:*:*:*:*:* Versions before 9.8.2 Vulnerable ·Busymac

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-66689
  2. 2026-10-03 Alias added: GHSA-577g-w45q-4pwf

References

Exploit 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences