CVE-2026-10278
MediumCVSS 6.3Exploitation Probability (EPSS)
Low risk21th percentile - higher than 21% of all known CVEs
Summary
In ishayoyo excel-mcp up to version 1.0.2, the read_file/write_file functions in src/index.ts are vulnerable to path traversal via manipulation of the filePath/outputPath arguments. The attack can be launched remotely and the exploit has been publicly disclosed.
Risk Assessment
Path traversal can allow an attacker to read or write arbitrary files on the server, potentially leading to data leakage or system compromise.
Recommendation
Immediately upgrade ishayoyo excel-mcp to a version later than 1.0.2 if available, or apply temporary mitigations such as path validation.
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Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

