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npm package

claude-faf-mcp

Open actionable advisories and recorded vendor fixes. This public package view has no inventory attached and cannot establish whether your deployment is affected. A vendor fix never resolves your finding; verify your installed version and the source guidance.

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1 actionable advisory, newest first. Withdrawn advisories and news are excluded. Coverage is partial.

  1. High, CVSS 7.5npmPublished

    claude-faf-mcp has an arbitrary local file read/write via unconfined path argument in FAF tools

    GHSA-rr55-jp92-8wp2

    Affected
    • npm claude-faf-mcp <= 5.7.1
    Fixed in
    5.7.2· Vendor fix available
    Issue
    claude-faf-mcp MCP tools accept a caller-controlled path argument and resolve it (~ expansion + path.resolve()) straight into a filesystem read/write without confining it to a trusted project directory. An absolute path or ../ traversal is resolved and used as-is, so the server process can be made to read — and, via the file tools, write — files outside the intended .faf project context. The only remaining limit is OS file permissions. Affected tools The shared getProjectPath() chokepoint (feeding the .faf tools) and the general-purpose fafread / fafwrite file tools resolved a caller path straight into a read/write with no confinement (denylist-only); an absolute path still reached home-directory secrets, and fafwrite could write outside the project. Impact An MCP client — or an LLM prompt-injected via attacker-controlled content (a web page, README, ticket, or .faf) into issuing a tool call — can read any file the server process can read: SSH keys (~/.ssh/idrsa), cloud…

    Recommended action: Upgrade to 5.7.2 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.comSource checked Evidence →