T08 · Insecure Dependencies
- Location
scripts/analyze_stock.py:3- Finding
Unpinned Runtime Dependencies Allow Mutable Third-Party Code Execution
- Content
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Vulnerability Details
File Location:
scripts/analyze_stock.py:3-10; the same pattern also occurs inscripts/earnings_alert.py:3-7andscripts/portfolio.py:3-5
Vulnerability Type: Insecure third-party dependency resolution
Risk Level: MediumVulnerable Code
scripts/analyze_stock.py:3-10:python # /// script # requires-python = ">=3.10" # dependencies = [ # "yfinance>=0.2.40", # "pandas>=2.0.0", # "fear-and-greed>=0.4", # "edgartools>=2.0.0", # "feedparser>=6.0.0", # ] # ///scripts/earnings_alert.py:3-7:python # /// script # requires-python = ">=3.10" # dependencies = [ # "yfinance>=0.2.40", # "pandas>=2.0.0", # ] # ///scripts/portfolio.py:3-5:python # /// script # requires-python = ">=3.10" # dependencies = ["yfinance>=0.2.40"] # ///These PEP 723 dependency declarations are invoked by documented commands such as:
bash uv run {baseDir}/scripts/analyze_stock.py AAPLTechnical Analysis
The dependency declarations use lower-bound constraints rather than exact, reviewed versions. When a documented
uv runcommand is executed,uvmay resolve and download any currently available release satisfying these constraints, together with its transitive dependencies.The repository does not contain a dependency lockfile, integrity hashes, or vendored reviewed packages. Consequently, the code that ultimately executes can change after the Skill itself has been audited. This violates reproducible-build principles and leaves execution dependent on the current state of the configured package index and upstream dependency accounts.
This finding does not establish that any currently named package is malicious. The risk arises because a future compromised release, compromised maintainer account, malicious transitive dependency, or untrusted package-index configuration could introduce arbitrary ...[truncated 1526 chars]
- Remediation
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Remediation Suggestions
- Replace open-ended lower-bound constraints with exact versions that have been reviewed and tested.
- Move dependency management into a standard
uvproject and commit the generateduv.lockfile, including all transitive dependencies. - Require locked execution, such as
uv run --locked, and useuv sync --frozenin automated environments so resolution cannot silently change. - Configure a trusted package index or internal mirror rather than inheriting an uncontrolled index configuration.
- Apply package integrity verification where supported and retain reviewed artifacts in a controlled cache or registry.
- Add automated dependency vulnerability and provenance checks to the update process.
- Update dependencies through explicit, reviewed pull requests rather than resolving newer compatible versions at every execution.
- Run the scripts in a sandbox with restricted filesystem access, minimal environment variables, and outbound-network access limited to documented financial-data services.