T08 · Insecure Dependencies
Warning
- Location
- pyproject.toml:7
- Finding
- Unpinned Third-Party Dependency Permits Unreviewed Package Updates## Vulnerability Details **File Location**: `pyproject.toml`, lines 7-9 **Vulnerability Type**: Unpinned third-party dependency and non-reproducible installation **Risk Level**: Medium ```toml dependencies = [ "opencc>=1.2.0", ] ``` ### Technical Analysis The project accepts any available `opencc` release at version 1.2.0 or later and does not include a reviewed lockfile or package integrity hashes. Consequently, two installations performed at different times may retrieve different third-party code even though the audited project files remain unchanged. The documentation also recommends commands such as `uv sync`, `uv add opencc`, and `pip install opencc`, which resolve package content from an external package index at installation time. An unexpectedly incompatible or compromised future release satisfying the version constraint could therefore enter the runtime without a corresponding change to this repository. This is a supply-chain weakness rather than evidence that the currently available OpenCC package is malicious. ### Attack Path 1. An attacker compromises the configured package repository, the dependency publisher account, or a future accepted OpenCC release. 2. The attacker publishes a malicious package version satisfying `opencc>=1.2.0`. 3. A user follows the documented installation process or runs `uv sync` without a pre-existing, integrity-checked lockfile. 4. The dependency resolver selects and downloads the malicious accepted version. 5. Attacker-controlled code executes during package installation, import, or conversion operations with the privileges of the user or automation environment running the project. ### Impact Assessment Successful exploitation could execute arbitrary code with the privileges of the process installing or running the skill. Depending on the environment, this could expose files, environment variables, credentials, converted input data, and writable project resources ...[truncated 302 chars]
- Remediation
- ## Remediation Suggestions 1. Pin OpenCC to a specifically reviewed version, for example: ```toml dependencies = [ "opencc==1.2.0", ] ``` 2. Generate and commit a lockfile that records exact transitive dependency versions and integrity hashes. 3. Require locked, reproducible installation in documentation and CI, such as `uv sync --frozen`. 4. Replace `uv add opencc` in end-user installation instructions because it modifies dependency resolution state; direct users to install from the committed lockfile instead. 5. Configure package installation to use a trusted, explicitly selected index and enable hash verification where supported. 6. Review dependency updates before refreshing the lockfile, and use automated dependency scanning and provenance verification in CI.