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CVE PROGRAM SOURCE RECORD6.5 Medium

CVE-2026-89039

Arbitrary file read via the convert_playwright_script prompt in mcp-k6

Description

A caller who can invoke the convert_playwright_script prompt in mcp-k6 can pass a bare file path as the playwright_script argument and receive the contents of any file readable by the user running the server, including SSH keys and cloud credentials in that user's home directory (path traversal). The working-directory restriction applied to '@'-prefixed paths can also be bypassed with a symbolic link inside the working directory that points outside it.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Grafana mcp-k6

Default version status: unaffected

  • 0.3.0 to < 0.7.0affected

References