T08 · Insecure Dependencies
Warning
- Location
- requirements.txt:1
- Finding
- Unpinned Third-Party Dependencies Permit Unreviewed Supply-Chain Changes## Vulnerability Details **File Location**: `requirements.txt:1-6` **Related Installation Instructions**: `SKILL.md:112-116` and `SKILL.md:196-200` **Vulnerability Type**: Unpinned third-party dependencies **Risk Level**: Medium ### Vulnerable Code ```text matplotlib numpy opencv-python pandas scikit-image scipy ``` The documented installation command is: ```bash pip install -r requirements.txt ``` ### Technical Analysis All six dependencies are specified without exact versions or integrity hashes. Consequently, each installation resolves whatever package versions are available from the configured package index at that time. The installed code can therefore differ from the dependency set that was originally developed, tested, or audited. Python packages and their installation mechanisms may execute code with the privileges of the user performing the installation. If an upstream package release, distribution artifact, dependency account, or configured package index is compromised, following the documented installation procedure could introduce attacker-controlled code. The absence of hashes also prevents `pip` from verifying that downloaded artifacts match a previously reviewed set. This finding does not establish that any currently named package is malicious. It identifies a reproducibility and supply-chain control weakness that makes future installations dependent on mutable, unverified artifacts. ### Attack Path 1. An attacker compromises an upstream dependency release, its publishing account, its distribution artifact, or a package index used by the installer. 2. The attacker publishes a malicious version under one of the dependency names listed in `requirements.txt`, or causes the configured index to resolve an attacker-controlled artifact. 3. A user follows the documented command `pip install -r requirements.txt`. 4. Because no exact versions or hashes are enforced, `pip` resolves and downloads ...[truncated 860 chars]
- Remediation
- ## Remediation Suggestions 1. Pin every direct dependency to an exact, reviewed version using `==`. 2. Generate and commit a deterministic lock file that includes resolved transitive dependencies. 3. Record cryptographic hashes for all approved artifacts and install with `pip install --require-hashes -r requirements.txt`. 4. Obtain packages only from an explicitly configured, trusted index; avoid dependency resolution against untrusted or mixed public/private sources. 5. Run dependency vulnerability and provenance checks in CI before accepting lock-file updates. 6. Review dependency updates through controlled pull requests and test them before deployment. 7. Install and execute the skill in an isolated virtual environment or sandbox under a non-privileged account with restricted filesystem and network access. 8. Update the installation documentation in `SKILL.md` to reference the locked, hash-verified dependency file.