CVE-2026-81845

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

MEDIUM
6.3
CVSS Score
Published: August 27, 2026 at 09:45 PM UTC
Updated: August 31, 2026 at 10:17 PM UTC
1 product affected across 1 vendorMcp Sequential Thinking

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Severity
MEDIUM6.3
Exploit prediction
EPSS 0.5%
SSVC
PoC

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Vendor states this is fixed in 0.6.0 (unaffected)

References (9)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/396171
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/396171/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/cve/CVE-2026-81845
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/887254

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.3MEDIUMVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-22

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