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CVE-2026-18953

Improper limitation of a pathname to a restricted directory in aws-transform-mcp-server

Published
Last modified
published
Not listed in CISA KEV
Fix
Fix or patch referenced
1 proof of concept on GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

Summary

Improper limitation of a pathname to a restricted directory in the get_resource tool in Amazon awslabs.aws-transform-mcp-server 0.1.0 through 0.1.4 might allow a context-dependent actor to write arbitrary files outside the intended working directory via the savePath parameter. To remediate this issue, users should upgrade to version 0.1.5 or later.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: total

  3. Record last updated

Affected versions

  • AWS aws-transform-mcp-server

    From 0.1.0 · through 0.1.4

References 4

pypi.org

aws.amazon.com

GitHub · awslabs/mcp

GitHub · ronamosa/CVE-2026-18953