CVE-2026-55557: Improper Limitation of a Pathname to a Restricted Directory

browse-mcp is a Playwright-based headless-browser MCP server for MCP-capable agents. Prior to 0.8.2, browserdownload writes a fetched response body to joinsavedir, filename without validating the caller-controlled savedir, while browsersavestate and browserloadstate honor a caller-controlled path...