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Rule Reference

SEC453lintai-ai-securitystablemarkdownwarn

AI markdown: pip http source

AI-native markdown installs Python packages from an insecure direct `http://` source

Provider
lintai-ai-security
Surface
markdown
Scope
per_file
Tier
stable
Severity
warn
Confidence
high
Detection
structural
Remediation
message_only

Activation Model

Preset Membership

This rule is part of the builtin activation graph through these preset memberships.

previewmembership
skillsmembership

Lifecycle

Stable Lifecycle Contract

State

stable_gated

Graduation rationale

Checks AI-native markdown for `pip install` examples that fetch a direct package source over `http://`.

Deterministic signal basis

MarkdownSignals exact `pip install` token analysis with direct `http://` source detection inside parsed markdown regions, excluding `--index-url` and `--extra-index-url` forms already covered by SEC449.

Malicious corpus
skill-pip-http-source
Benign corpus
skill-pip-https-source-safe
structured evidence required remediation reviewed
Canonical note

Structural stable rule intended as a high-precision check with deterministic evidence.

Nearby Signals

Related Rules

SEC352AI markdown: unscoped Bash tool grantAI-native markdown frontmatter grants unscoped Bash tool accessmarkdownstable
SEC417AI markdown: unpinned pip git installAI-native markdown installs Python packages from an unpinned `git+https://` sourcemarkdownstable
SEC428AI markdown: unsafe Read path grantAI-native markdown frontmatter grants `Read(...)` over an unsafe repo-external pathmarkdownstable
SEC429AI markdown: unsafe Write path grantAI-native markdown frontmatter grants `Write(...)` over an unsafe repo-external pathmarkdownstable
SEC430AI markdown: unsafe Edit path grantAI-native markdown frontmatter grants `Edit(...)` over an unsafe repo-external pathmarkdownstable
SEC431AI markdown: unsafe Glob path grantAI-native markdown frontmatter grants `Glob(...)` over an unsafe repo-external pathmarkdownstable

SEC453 / MD-PIP-HTTP-SOURCE ​

SEC453 flags AI-native markdown when a pip install example fetches a package directly from http://....

Why It Matters ​

A direct http:// package source removes transport integrity from the package payload itself. In shared AI-native instructions, that turns an insecure supply-chain fetch into copy-pastable setup guidance.

Trigger Shape ​

The rule triggers only when all of these are true:

  • the file is an AI-native markdown instruction surface
  • a parsed markdown region contains pip install, pip3 install, or python -m pip install
  • the same region also contains a direct http:// package source argument

Clean Cases ​

These stay clean:

  • pip install examples that fetch the package over https://
  • pip install --index-url http://... and --extra-index-url http://... because those are covered by SEC449
  • unrelated http:// text outside a matching pip install form

Example Trigger ​

bash
pip install http://packages.example.test/demo.whl

Safer Example ​

bash
pip install https://packages.example.test/demo.whl

How To Fix ​

Replace the insecure direct http:// source with a normal TLS-verified https:// source.