CVE-2026-10278: Ishayoyo Excel-Mcp

Medium severity, CVSS 6.3. EPSS: 0.3% chance of exploitation in the next 30 days.

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.

Affected products

• Ishayoyo Excel-Mcp: version 1.0.0 only; version 1.0.1 only; version 1.0.2 only

Published 2026-06-01. Last modified 2026-07-22.