T08 · Insecure Dependencies
Warning
- Location
- scripts/quote.py:1
- Finding
- Unpinned Runtime Dependencies Enable Supply-Chain Exposure<![CDATA[ ## Vulnerability Details **File Location**: `scripts/quote.py:1-3` **Vulnerability Type**: Unpinned third-party dependencies **Risk Level**: Medium ### Vulnerable Code ```python # /// script # dependencies = ["rich", "httpx"] # /// ``` ### Technical Analysis The script declares `rich` and `httpx` without exact versions or integrity constraints. When the documented `uv run scripts/quote.py` command is executed in an environment where these packages are not already resolved and locked, `uv` can retrieve whichever compatible releases are currently available from the configured package index. Because both packages are imported and executed by the script, a compromised upstream release, package-index compromise, dependency-resolution attack, or unexpectedly unsafe future version could introduce code that runs with the privileges of the user invoking the Skill. The reviewed code does not provide a lockfile, hashes, or another mechanism that binds execution to previously reviewed dependency artifacts. ### Attack Path 1. An attacker compromises an upstream dependency release, its publisher account, the configured package index, or the dependency-resolution environment. 2. A user runs the documented command: ```bash uv run scripts/quote.py AAPL ``` 3. `uv` resolves and downloads the mutable, unpinned dependency version. 4. Python imports `httpx` and `rich` before processing the requested ticker. 5. Malicious package initialization code executes in the Skill process. ### Impact Assessment Successful exploitation would execute code with the operating-system privileges of the user or Agent running the Skill. Depending on the execution environment, this could permit access to readable files, environment variables, network resources, and writable project or user files. The project does not explicitly request elevated privileges, so this finding does not independently provide root or administrator access. The practical scope is limited by the per ...[truncated 67 chars]
- Remediation
- <![CDATA[ ## Remediation Suggestions 1. Pin every direct dependency to an exact, reviewed version, for example: ```python # /// script # dependencies = [ # "rich==<reviewed-version>", # "httpx==<reviewed-version>", # ] # /// ``` 2. Prefer a locked project environment that records the full transitive dependency graph. 3. Verify downloaded artifacts with cryptographic hashes where the deployment workflow supports hash-locked requirements. 4. Configure package installation to use a trusted, authenticated package index. 5. Perform dependency updates through an explicit review and testing process rather than resolving new versions during normal Skill execution. 6. Run the Skill with least privilege and restrict filesystem and network access to reduce the impact of a compromised package. ]]>