T08 · Insecure Dependencies
- Location
SKILL.md:394- Finding
Unpinned Third-Party Python Dependency
- Content
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Vulnerability Details
File Location:
SKILL.md, line 394
Vulnerability Type: Unpinned third-party dependency installation
Risk Level: MediumVulnerable code snippet:
bash pip3 install feedparserTechnical Analysis
The Skill instructs the user or an execution-capable Agent to install
feedparserwithout specifying an exact version or verifying an integrity hash. Consequently, the installed artifact can change over time without any corresponding change to the reviewed Skill.The package name refers to a legitimate dependency and there is no evidence that it is currently malicious. Nevertheless, the installation method does not provide reproducible or integrity-verified dependency resolution. If the package, one of its transitive dependencies, or the relevant package-distribution infrastructure were compromised, malicious package code could execute during installation or subsequent use.
Attack Path
- An attacker compromises a future release of
feedparser, a resolved transitive dependency, a maintainer account, or the dependency-distribution channel. - A user or Agent follows the Skill instructions and runs
pip3 install feedparser. - Package resolution retrieves the compromised version because the Skill defines neither an approved version nor expected hashes.
- Malicious package code executes during installation or when the RSS functionality imports the dependency.
- The code operates with the same permissions and environmental access as the user or Agent that performed the installation.
Impact Assessment
Successful exploitation could permit arbitrary code execution within the installing user's security context. Depending on that context, an attacker could access files readable by the user, alter writable project or environment files, access environment variables, make network requests, or compromise data processed by the Skill.
The finding does not independently provide ...[truncated 360 chars]
- An attacker compromises a future release of
- Remediation
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Remediation Suggestions
- Pin
feedparserto an explicitly reviewed version rather than resolving the latest available release. - Record dependencies in a lock file or fully pinned requirements file.
- Include cryptographic hashes and install with hash verification, such as
pip install --require-hashes -r requirements.txt. - Review and pin all transitive dependencies where the selected dependency-resolution workflow permits it.
- Install the package inside a dedicated virtual environment with no administrative privileges.
- Obtain dependencies only from an explicitly configured trusted package index.
- Use automated dependency scanning and controlled update reviews before changing pinned versions.
- Pin