T08 · Insecure Dependencies
- Location
SKILL.md:18- Finding
Unpinned Third-Party Dependencies
- Content
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Vulnerability Details
File Location:
SKILL.md, lines 18–20
Vulnerability Type: Unpinned runtime dependencies without integrity verification
Risk Level: Lowbash pip install requests beautifulsoup4Technical Analysis
The documented installation command retrieves the latest available versions of
requests,beautifulsoup4, and their transitive dependencies from pip's configured package index. It does not specify reviewed versions, enforce package hashes, or use a lock file.Consequently, installation is not reproducible and trusts mutable package-index state. If a package release, maintainer account, configured index, or transitive dependency is compromised, pip could install attacker-controlled code. Python packages may execute build or installation logic during installation, and the installed packages are subsequently imported by
get.py.This finding concerns supply-chain hardening. The reviewed project does not itself specify a malicious package, typo-squatted name, or untrusted index.
Attack Path
- An attacker compromises a referenced package, one of its transitive dependencies, a package-maintainer account, or the package index configured in the user's environment.
- The attacker publishes or serves a malicious version under a dependency name resolved by the documented command.
- A user follows the documentation and runs:
bash pip install requests beautifulsoup4 - Because versions and hashes are not constrained, pip resolves and installs the malicious or otherwise unreviewed release.
- Attacker-controlled package code may run during installation or when
get.pyimports the dependency.
Impact Assessment
Successful exploitation could execute code with the privileges of the user performing installation or running the Skill. Within those privileges, an attacker could access user-readable data, modify user-writable files, steal environment credentials, alter Skill output, or establish addition ...[truncated 247 chars]
- Remediation
View remediation
Remediation Suggestions
- Create a reviewed dependency lock file that pins direct and transitive dependencies to exact versions.
- Record cryptographic hashes for every distributable artifact and require verification during installation:
bash python3 -m pip install --require-hashes -r requirements.txt - Generate the locked requirements from a trusted environment and review dependency changes before updating it.
- Install dependencies inside an isolated virtual environment rather than into the system Python environment.
- Use only an explicitly trusted package index and avoid fallback to untrusted or uncontrolled indexes.
- Add automated dependency vulnerability and provenance scanning to the release process.
