unboundcompute/security-agent-skills · skills/hunting-http-parameter-pollution/SKILL.md

hunting-http-parameter-pollution skillA

hunting-http-parameter-pollution is agent-read markdown (skill) from unboundcompute/security-agent-skills: Hunt HTTP parameter pollution, where the same parameter name appears more than once, or a parameter is shaped as an array, and two components in the request path disagree on how to resolve it. A validator, a gateway, or a filter reads one occurrence while the backend sink reads another, so a value that passes a check is not the value that is used, and a control is bypassed, an authorization decision is confused, or a payload is smuggled past a filter. First-versus-last-wins differentials, array-.

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add unboundcompute/security-agent-skills/hunting-http-parameter-pollution@git:20260903.6dac719
Exact content
mdr add unboundcompute/security-agent-skills/hunting-http-parameter-pollution@sha256:d84866f696a0edd4

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_37fj6pwb67hz347j.svg)](https://markdownregistry.com/a/art_37fj6pwb67hz347j)

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Versions

versioncommittedcommitsizeaudit
git:20260903.6dac719 latest2026-09-03 6dac719 10,062 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (10062 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

unboundcompute/security-agent-skills · 5 stars · license MIT · pushed 2026-09-08 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_37fj6pwb67hz347j
GET https://markdownregistry.com/api/v1/resolve?ref=unboundcompute/security-agent-skills/hunting-http-parameter-pollution
GET https://markdownregistry.com/api/v1/blob/d84866f696a0edd45a63f43666d8f12cfea84639cd374a6ab05675b5bf9c72a7

Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.