T08 · Insecure Dependencies
- Location
requirements.txt:1- Finding
Unpinned Third-Party Dependencies Permit Unreviewed Package Updates
- Content
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Vulnerability Details
File Location:
requirements.txt:1-2
Additional Locations:SKILL.md:7,_meta.json:10,README.md:15
Vulnerability Type: Supply-chain risk caused by unbounded dependency versions
Risk Level: MediumVulnerable Code
requirements.txt:1-2:text proxmoxer>=2.0.0 requests>=2.0.0SKILL.md:7:yaml python: ["proxmoxer>=2.0.0", "requests>=2.0.0"]_meta.json:10:json "python": ["proxmoxer>=2.0.0", "requests>=2.0.0"]README.md:15:shell pip install proxmoxer requestsTechnical Analysis
The dependency specifications define only minimum versions and provide no exact version pins, upper bounds, lockfile, or cryptographic hashes. The installation command in the README is even less restrictive and requests the latest available releases.
Consequently, installation results can change after the Skill has been reviewed. A future compromised, malicious, or incompatible release satisfying these constraints may be installed automatically. Python packages can execute code during installation and subsequently execute imported package code when the Skill starts.
This is particularly sensitive because
proxmoxerruns in the same process asscripts/proxmox.py. At runtime, that process can accessPVE_HOST,PVE_TOKEN_ID, andPVE_TOKEN_SECRET, as well as perform operations allowed by the associated Proxmox API token.No evidence indicates that the currently named packages are malicious. The confirmed issue is the absence of reproducible, integrity-verified dependency resolution.
Attack Path
- An attacker compromises a dependency publisher account, distribution infrastructure, or a future dependency release.
- The attacker publishes a malicious version that satisfies
proxmoxer>=2.0.0orrequests>=2.0.0. - A user installs or updates the Skill dependencies using
requirements.txtor th ...[truncated 1276 chars]
- Remediation
View remediation
Remediation Suggestions
- Pin every direct dependency to a specifically reviewed version using
==. - Generate a lockfile containing the full transitive dependency graph rather than resolving dependencies afresh during each installation.
- Record package hashes and require integrity verification, for example with
pip install --require-hashes -r requirements.txt. - Review and update dependency pins through a controlled process that includes vulnerability scanning and regression testing.
- Keep dependency declarations synchronized across
requirements.txt,SKILL.md,_meta.json, andREADME.md. - Determine whether
requestsmust be declared directly. Remove it as a direct dependency if the Skill does not directly require it, while still locking any transitive version selected forproxmoxer. - Install dependencies from the official package index or a controlled internal mirror, and prohibit untrusted extra indexes.
- Continue enforcing least-privilege Proxmox API-token permissions so that compromise of the runtime dependency chain has limited infrastructure impact.
- Pin every direct dependency to a specifically reviewed version using
