io.github.matbanik/pomera

What we checked

Six static checks, weighted by risk. Every result reflects only what could be observed in the published package and repository — never intent.

• Injection surface

  unscannable25% of grade

  Tool descriptions/manifest scanned for instruction-injection patterns (imperatives at the model, hidden text, 'ignore previous', data-exfil URLs).

  No tool descriptions, server instructions, prompts, or resources were fetched; nothing to scan for injection.

• Supply chain

  warn25% of grade

  Package provenance: namespace verification, repo linkage, maintainer count, account age, postinstall scripts, typosquat distance.

  install hook "postinstall" present and not a recognized benign build command

• Credential hygiene

  pass15% of grade

  How the server takes secrets (env vs plaintext config vs hardcoded); secrets appearing in tool schemas.

  Reads secrets from the environment (e.g. scripts/postinstall.js) — the recommended intake shape. PASS = no static red flag; static analysis cannot prove the code honors env-based secret handling at runtime.

• Permission scope

  fail15% of grade

  Declared tools vs. breadth (filesystem, network, exec); flags shell-exec and unbounded filesystem access.

  HIGH: tools/mcp_widget.py: references a sensitive credential path (/mcp.json) — the tool-poisoning exfiltration target. HIGH: pomera_mcp_server.py: references a sensitive credential path (/mcp.json) — the tool-poisoning exfiltration target. HIGH: shell/exec capability AND network egress together — download-and-execute risk (bin/pomera-ai-commander.js: imports child_process and calls exec/spawn; tools/ai_tools.py: outbound HTTP/socket call). HIGH: shell/exec capability AND destructive filesystem writes together (bin/pomera-ai-commander.js: imports child_process and calls exec/spawn; scripts/postinstall.js: destructive/writing fs.* call (write/unlink/rm/chmod/rename)). discloses shell/exec capability: bin/pomera-ai-commander.js: imports child_process and calls exec/spawn discloses shell/exec capability: bin/pomera-create-shortcut.js: imports child_process and calls exec/spawn discloses shell/exec capability: bin/pomera.js: imports child_process and calls exec/spawn discloses shell/exec capability: scripts/postinstall.js: imports child_process and calls exec/spawn discloses shell/exec capability: create_shortcut.py: subprocess.* call discloses shell/exec capability: tools/diff_viewer.py: subprocess.* call discloses shell/exec capability: core/load_presets_dialog.py: subprocess.* call discloses shell/exec capability: tools/mcp_widget.py: subprocess.* call discloses shell/exec capability: pomera.py: subprocess.* call discloses shell/exec capability: tools/validate_version.py: subprocess.* call discloses shell/exec capability: scripts/validate-release-workflow.py: subprocess.* call discloses dynamic code execution: tools/curl_tool.py: uses eval/exec/__import__ discloses broad/destructive filesystem access: scripts/postinstall.js: destructive/writing fs.* call (write/unlink/rm/chmod/rename) discloses broad/destructive filesystem access: core/backup_manager.py: open(…, 'w'/'a'/'x') write-mode file access discloses broad/destructive filesystem access: core/backup_recovery_manager.py: open(…, 'w'/'a'/'x') write-mode file access discloses broad/destructive filesystem access: core/backup_recovery_manager.py: destructive filesystem call (shutil.rmtree/os.remove/etc.) discloses broad/destructive filesystem access: core/content_hash_cache.py: open(…, 'w'/'a'/'x') write-mode file access discloses broad/destructive filesystem access: tools/curl_settings.py: destructive filesystem call (shutil.rmtree/os.remove/etc.) discloses broad/destructive filesystem access: tools/curl_tool.py: path traversal ('../') combined with file access discloses broad/destructive filesystem access: core/data_directory.py: destructive filesystem call (shutil.rmtree/os.remove/etc.) discloses broad/destructive filesystem access: core/database_settings_manager.py: open(…, 'w'/'a'/'x') write-mode file access discloses broad/destructive filesystem access: tools/folder_file_reporter.py: path traversal ('../') combined with file access discloses broad/destructive filesystem access: tools/mcp_widget.py: open(…, 'w'/'a'/'x') write-mode file access discloses broad/destructive filesystem access: tools/mcp_widget.py: destructive filesystem call (shutil.rmtree/os.remove/etc.) discloses broad/destructive filesystem access: core/migration_test_suite.py: destructive filesystem call (shutil.rmtree/os.remove/etc.) discloses broad/destructive filesystem access: core/migration_validator.py: destructive filesystem call (shutil.rmtree/os.remove/etc.) discloses broad/destructive filesystem access: core/performance_monitor.py: open(…, 'w'/'a'/'x') write-mode file access discloses broad/destructive filesystem access: core/persistence_manager.py: open(…, 'w'/'a'/'x') write-mode file access discloses broad/destructive filesystem access: pomera.py: open(…, 'w'/'a'/'x') write-mode file access discloses broad/destructive filesystem access: scripts/validate-release-workflow.py: open(…, 'w'/'a'/'x') write-mode file access discloses broad/destructive filesystem access: scripts/validate-release-workflow.py: destructive filesystem call (shutil.rmtree/os.remove/etc.) discloses broad/destructive filesystem access: scripts/build.sh: path traversal ('../') combined with file access Capability DISCLOSURE, not a verdict: static analysis sees the primitive is present and reachable, not whether its use is attacker-controlled.

• Version behavior

  unscannable10% of grade

  Diff of tool definitions between versions; new permissions or changed descriptions in a patch release (the postmark-mcp class).

  no prior version to diff (first sight of io.github.matbanik/[email protected]); version-drift / rug-pull cannot be evaluated. Cold-start risk is covered by point-in-time checks (injection_surface, supply_chain, credential_hygiene), not here.

• Transport config

  warn10% of grade

  Remote servers: TLS and auth mode (none/token/OAuth). Local servers: whether the manifest indicates it phones home.

  manifest/source references tracking behavior — disclosure