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TI-2026-56468 Aliases CVE-2026-81845GHSA-j8g6-hw52-mhg7

arben-adm mcp-sequential-thinking Import Session/Export Session server.py export_session path traversal

Priority MEDIUM 57CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
Low · Low · Low
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

A vulnerability has been found in arben-adm mcp-sequential-thinking up to 0.5.0. Impacted is the function import_session/export_session of the file mcp_sequential_thinking/server.py of the component Import Session/Export Session. Such manipulation of the argument file_path leads to path traversal. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 0.6.0 is recommended to address this issue. The name of the patch is 2fad3ee8ab1d0868b6c1afb5895bc336a10e5267. Upgrading the affected component is recommended.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00496 42nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed mcp-sequential-thinking (arben-adm): 0.6.0

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
arben-admmcp-sequential-thinking0.1; 0.2; 0.3; 0.4; 0.5.00.6.0Patch availableCNA
  • mcp-sequential-thinking Vendorarben-adm Affected 0.1; 0.2; 0.3; 0.4; 0.5.0 Fixed in 0.6.0 Patch available CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:arben-adm:mcp-sequential-thinking:*:*:*:*:*:*:*:*———
  • cpe:2.3:a:arben-adm:mcp-sequential-thinking:*:*:*:*:*:*:*:* Versions — — ·—

Remediation

  • Fix · CNA mcp-sequential-thinking (arben-adm) Fixed in 0.6.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-81845
  2. 2026-10-03 Alias added: GHSA-j8g6-hw52-mhg7

References

Exploit 1

Patch 3

Other 1

Sources

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