T08 · Insecure Dependencies
- Location
requirements.txt:1- Finding
Automatic Installation of an Unpinned Third-Party Dependency
- Content
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Vulnerability Details
File Location:
requirements.txt:1(installation instruction atSKILL.md:20-25)
Vulnerability Type: Unpinned and unverified third-party dependency
Risk Level: MediumVulnerable Code
requirements.txt:1:text pywizlightThe dependency is installed automatically as directed by
SKILL.md:20-25:bash # 1. Create Virtual Environment and Install Dependencies python3 -m venv venv && source venv/bin/activate && pip install -r requirements.txtTechnical Analysis
The requirements file specifies
pywizlightwithout an exact version or cryptographic hash. The skill instructions tell the agent to run the installation automatically when the virtual environment does not exist. Consequently, the package installer resolves and downloads whichever compatible release is available at installation time.This makes installations non-reproducible and leaves the skill exposed to upstream package compromise, malicious release replacement, or unexpected security and behavior changes in future versions. Python packages may execute build-backend or installation-related code, and imported dependency code executes with the privileges of the user running the skill.
No evidence indicates that the currently named package is malicious. The confirmed issue is the absence of dependency pinning and integrity verification combined with automatic installation.
Attack Path
- An attacker compromises the upstream dependency, a maintainer account, or the applicable package distribution channel.
- The attacker publishes or substitutes a malicious release under the expected package name.
- The agent follows the mandatory setup instruction and executes
pip install -r requirements.txt. - Because no version or hash is specified,
pipaccepts the attacker-controlled release if selected by dependency resolution. - Malicious package code executes during installation, import, or su ...[truncated 493 chars]
- Remediation
View remediation
Remediation Suggestions
- Pin
pywizlightto an exact, reviewed version rather than allowing unconstrained resolution. - Generate a lock file containing cryptographic hashes for all direct and transitive dependencies.
- Install with hash enforcement, such as
pip install --require-hashes -r requirements.txt. - Review dependency release notes and security advisories before updating the pinned version.
- Obtain explicit user approval before installing packages instead of directing the agent to install them automatically.
- Use a trusted package index and, where practical, an internally controlled mirror containing approved artifacts.
- Run installation and the skill in an isolated, least-privileged environment with restricted filesystem and network access.
- Pin
