T08 · Insecure Dependencies
Warning
- Location
requirements.txt:1- Finding
Unpinned Pillow Dependency Permits Unreviewed Future Releases
- Content
View full analysis
=10.0.0 ``` `README.md:11-13`: ```bash pip install -r requirements.txt ``` `SKILL.md:59-63`: ```markdown ### Installation ```bash pip install -r requirements.txt ``` ``` ### Technical Analysis The dependency specification establishes only a minimum Pillow version and does not set an upper bound, pin an audited release, or verify package hashes. Consequently, identical installation commands can resolve to different Pillow releases over time. This creates a supply-chain risk because a future eligible release is trusted automatically without corresponding review of the Skill. If an eligible package release or the associated package-distribution infrastructure is compromised, the documented installation procedure could install attacker-controlled code. Python package installation can execute build-related code, while malicious runtime code can execute when the dependency is imported. This finding does not establish that the current Pillow package is malicious. The vulnerability is the absence of reproducible version and integrity controls. ### Attack Path 1. An attacker compromises an eligible future Pillow release, its publishing credentials, or a relevant package-distribution channel. 2. The attacker publishes a malicious version satisfying `pillow>=10.0.0`. 3. A user follows the documented command: ```bash pip install -r requirements.txt ``` 4. The package resolver selects the malicious or compromised release because no exact version or hash is required. 5. Attacker-controlled code executes during package installation, build processing, or later when the project imports Pillow. 6. The payload operates with the permissions of the acco ...[truncated 677 chars]- Remediation
View remediation
``` 2. Generate and commit a deterministic lock file containing cryptographic hashes. For example: ```bash pip-compile --generate-hashes requirements.in ``` 3. Require hash verification during installation: ```bash pip install --require-hashes -r requirements.txt ``` 4. Update dependencies through a controlled process that includes security advisory review, compatibility testing, and explicit approval before changing the pinned version. 5. Perform dependency installation and image processing in an isolated, least-privileged environment without unnecessary credentials or filesystem access. 6. Add automated dependency scanning and monitoring for Pillow security advisories while retaining manual review before upgrades. ]]>