CVE-2026-10278 MEDIUM

CVE-2026-10278: ishayoyo excel-mcp read_file/write_file index.ts path traversal

Vendor Ishayoyo
Product excel-mcp
Weakness CWE-22 · Path traversal
Published June 1, 2026
Last update June 2, 2026

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

A vulnerability was determined in ishayoyo excel-mcp up to 1.0.2. Impacted is an unknown function of the file src/index.ts of the component read_file/write_file. Executing a manipulation of the argument filePath/outputPath can lead to path traversal. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.

Key dates

02Disclosure timeline

June 1, 2026 CVE published
June 2, 2026 Record updated