cvedb.io
CVE-2026-4270
MEDIUM · CVSS 5.5
EPSS exploitation probability: 0%
Published 2026-03-16T17:16:32.270 · Last modified 2026-06-17T10:56:20.093

Summary

Improper Protection of Alternate Path exists in the no-access and workdir feature of the AWS API MCP Server versions >= 0.2.14 and < 1.3.9 on all platforms may allow the bypass of intended file access restriction and expose arbitrary local file contents in the MCP client application context. To remediate this issue, users should upgrade to version 1.3.9.

Affected products

amazon — aws_api_mcp_server

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.