T08 · Insecure Dependencies
- Location
requirements.txt:1- Finding
Unpinned third-party dependencies permit uncontrolled supply-chain drift
- Content
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Vulnerability Details
File Location:
requirements.txt, lines 1-3
Vulnerability Type: Unpinned dependency versions
Risk Level: MediumVulnerable Code
text httpx>=0.25.0 pillow>=11.3.0 python-dotenv>=1.0.0Technical Analysis
The installation instructions direct users to install these dependencies with
pip install -r requirements.txt, but every dependency uses only an open-ended minimum version. Consequently, two installations performed at different times can resolve to materially different package versions.No malicious or misspelled package was identified in the reviewed dependency list. Nevertheless, the absence of exact versions and integrity hashes means that package behavior can change after the Skill has been audited. A compromised upstream release, malicious maintainer update, or newly introduced vulnerable release could be selected automatically during a future installation.
This is particularly relevant because:
httpxprocesses API keys, prompts, images, proxy settings, and remote responses.python-dotenvreads credential-bearing environment files.Pillowparses attacker-influenced or remotely downloaded image data.- Dependencies installed through
pipexecute Python package build and installation logic with the permissions of the installing user.
Attack Path
- An attacker compromises an upstream package account, release process, distribution artifact, or transitive dependency.
- The attacker publishes a version satisfying the unrestricted lower-bound constraint.
- A user or deployment environment runs
pip install -r requirements.txt. - The resolver selects the compromised or vulnerable release because no upper bound, lock file, or hash restricts it.
- Malicious installation logic can execute during installation, or malicious runtime logic can execute when the Skill imports the package.
This attack requires compromise or malicious modificat ...[truncated 873 chars]
- Remediation
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Remediation Suggestions
- Pin every direct and transitive dependency to an exact reviewed version.
- Generate a lock file using a tool such as
pip-tools, Poetry, or uv. - Require package hashes during installation, for example with
pip install --require-hashes. - Separate human-maintained input requirements from a fully resolved deployment lock file.
- Use automated dependency scanning and controlled update reviews before changing pinned versions.
- Install dependencies in an isolated virtual environment or container under a non-privileged account.
- Avoid source distributions in production where practical, or build and verify wheels in a trusted build pipeline.
- Document a reproducible update process that includes vulnerability scanning, tests, and review of dependency provenance.