Summary
appium-mcp v1.34.4 was classified as CRITICAL RISK with a risk score of 359. Sigil detected 17 findings across 415 files, covering phases including network exfiltration, install hooks, code patterns. Review the findings below before installing this package.
v1.34.4
23 March 2026, 06:27 UTC
by Sigil Bot
Risk Score
359
Findings
17
Files Scanned
415
Provenance
Findings by Phase
Phase Ordering
Phases are ordered by criticality, with the most dangerous at the top. Click any phase header to expand or collapse its findings. Critical phases are expanded by default.
install-pip-setup-exec
CRITICALsetup.py executes code at install time
package/dist/tools/documentation/uploads/documents.json:1
[{"pageContent":"---\nhide:\n - toc\n\ntitle: Server Command-Line Arguments\n---\n\nTo start the Appium server, you may either run `appium` or `appium server`. The `server` subcommand\nis considered to be the default, so if you omit it, Appium will interpret this as your request to\nrun the Appium server.\n\nThe invocation of `appium` (or `appium server`) can take a number of arguments, which are detailed\nbelow.\n\n!!! note\n\n All of these arguments can be set via a [Configuration File](..Why was this flagged?
This setup.py calls subprocess, os.system, exec, or eval during package installation. Legitimate packages rarely need to execute arbitrary commands at install time. This pattern is commonly used by malicious packages to download and run payloads, exfiltrate environment variables, or establish persistence. Rated CRITICAL because it runs with the installer's full permissions.
install-makefile-curl
HIGHMakefile/script pipes remote content to shell
package/dist/tools/documentation/uploads/documents.json:1
[{"pageContent":"---\nhide:\n - toc\n\ntitle: Server Command-Line Arguments\n---\n\nTo start the Appium server, you may either run `appium` or `appium server`. The `server` subcommand\nis considered to be the default, so if you omit it, Appium will interpret this as your request to\nrun the Appium server.\n\nThe invocation of `appium` (or `appium server`) can take a number of arguments, which are detailed\nbelow.\n\n!!! note\n\n All of these arguments can be set via a [Configuration File](..Why was this flagged?
A script or Makefile pipes content from a remote URL directly into a shell (curl | sh or wget | bash). This is inherently dangerous because the remote content can change at any time, and the command runs with the current user's permissions. Rated HIGH because it requires manual execution (unlike install hooks) but still executes arbitrary remote code.
install-npm-postinstall
CRITICALnpm lifecycle script — runs automatically on install
package/package.json:42
"unzip-assets": "node scripts/zip-assets.mjs unzip",
"postinstall": "node scripts/zip-assets.mjs unzip"
},Why was this flagged?
npm lifecycle scripts like postinstall run automatically during package installation with no user interaction required. This is the #1 attack vector for malicious npm packages — attackers embed data theft or backdoor installation in these hooks. Rated CRITICAL because code executes before the developer can review it.
install-pip-setup-exec
CRITICALsetup.py executes code at install time
package/src/tools/documentation/uploads/documents.json:1
[{"pageContent":"---\nhide:\n - toc\n\ntitle: Server Command-Line Arguments\n---\n\nTo start the Appium server, you may either run `appium` or `appium server`. The `server` subcommand\nis considered to be the default, so if you omit it, Appium will interpret this as your request to\nrun the Appium server.\n\nThe invocation of `appium` (or `appium server`) can take a number of arguments, which are detailed\nbelow.\n\n!!! note\n\n All of these arguments can be set via a [Configuration File](..Why was this flagged?
This setup.py calls subprocess, os.system, exec, or eval during package installation. Legitimate packages rarely need to execute arbitrary commands at install time. This pattern is commonly used by malicious packages to download and run payloads, exfiltrate environment variables, or establish persistence. Rated CRITICAL because it runs with the installer's full permissions.
install-makefile-curl
HIGHMakefile/script pipes remote content to shell
package/src/tools/documentation/uploads/documents.json:1
[{"pageContent":"---\nhide:\n - toc\n\ntitle: Server Command-Line Arguments\n---\n\nTo start the Appium server, you may either run `appium` or `appium server`. The `server` subcommand\nis considered to be the default, so if you omit it, Appium will interpret this as your request to\nrun the Appium server.\n\nThe invocation of `appium` (or `appium server`) can take a number of arguments, which are detailed\nbelow.\n\n!!! note\n\n All of these arguments can be set via a [Configuration File](..Why was this flagged?
A script or Makefile pipes content from a remote URL directly into a shell (curl | sh or wget | bash). This is inherently dangerous because the remote content can change at any time, and the command runs with the current user's permissions. Rated HIGH because it requires manual execution (unlike install hooks) but still executes arbitrary remote code.
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