T08 · Insecure Dependencies
- Location
SKILL.md:119- Finding
Unpinned Third-Party Package Retrieval and Execution
- Content
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Vulnerability Details
File Location:
SKILL.md, lines 119–122
Vulnerability Type: Unpinned package retrieval and execution
Risk Level: MediumVulnerable Code
markdown ### 10. Verify Solograph MCP (optional check) - Try running `uvx solograph --help` or check if MCP tools are available - If available: "Solograph detected — code graph ready" - If not: "Tip: install Solograph for code search across projects (`pip install solograph` or `uvx solograph`)"Technical Analysis
The command
uvx solograph --helpmay retrieve the latest availablesolographpackage from an external package index and immediately execute its entry point. The dependency is not pinned to a reviewed version or verified with a cryptographic hash. The suggestedpip install solographcommand is also unpinned.Executing a package merely to detect its availability crosses a trust boundary: the code that runs can change after this Skill has been reviewed. If the package, maintainer account, package index, or dependency chain is compromised, arbitrary code could execute under the Agent user's account.
Attack Path
- An attacker compromises the
solographpackage, one of its dependencies, its publisher account, or the relevant package-distribution channel. - The attacker publishes a malicious release that preserves the expected package name and command interface.
- The Skill performs its optional check by running
uvx solograph --help. uvxresolves and downloads the unpinned release.- The malicious package code executes during installation, import, or entry-point startup.
- The payload operates with the permissions and environmental access of the user running the Agent.
Impact Assessment
Successful exploitation could provide arbitrary code execution with the Agent user's privileges. Depending on the runtime environment, this may expose source code, project configuration, accessible credentials and environment variables, writable user file ...[truncated 152 chars]
- An attacker compromises the
- Remediation
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Remediation Suggestions
- Do not use package execution as an availability check. Prefer a non-executing local lookup, such as checking whether an already-installed executable exists.
- Require explicit user approval before downloading or installing any external package.
- Pin
solographto a specifically reviewed version rather than resolving the latest release. - Verify downloaded artifacts with trusted hashes or signatures and use a locked dependency manifest.
- Retrieve packages only from an explicitly configured, trusted index.
- Where feasible, execute third-party tooling in a sandbox with restricted filesystem, credential, environment-variable, and network access.
- Clearly distinguish between checking for an existing local installation and offering installation instructions.
