What is CVE-2026-10278?

CVE-2026-10278 is a medium-severity vulnerability in Ishayoyo Excel-mcp, classified under Path Traversal. CVSS score: 6.3/10. Published 2026-06-01.

How severe is CVE-2026-10278?

Medium severity. CVSS v3 base score is 6.3 out of 10.

Path Traversal in Ishayoyo Excel-mcp

CVE-2026-10278

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…

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.001 (16.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

Affected products

Ishayoyo Excel-mcp — versions 1.0.0, 1.0.1, 1.0.2

Weakness classification (CWE)

CWE-22 — Path Traversal

References

cna@vuldb.com (technical-description, vdb-entry)
cna@vuldb.com (signature, permissions-required)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (issue-tracking, exploit)
cna@vuldb.com (product)

Frequently asked questions

What is CVE-2026-10278?: CVE-2026-10278 is a medium-severity vulnerability in Ishayoyo Excel-mcp, classified under Path Traversal. CVSS score: 6.3/10. Published 2026-06-01.
How severe is CVE-2026-10278?: Medium severity. CVSS v3 base score is 6.3 out of 10.