unboundcompute/security-agent-skills · skills/hunting-path-traversal-and-file-access/SKILL.md

hunting-path-traversal-and-file-access skillA

hunting-path-traversal-and-file-access is agent-read markdown (skill) from unboundcompute/security-agent-skills: Hunt path traversal and unsafe file access where untrusted input builds a filesystem path and the resolved path escapes the intended base directory, so the process reads or writes files it should not. Covers download and upload names, template and include paths, static-file routes, and archive members driven to dot-dot or absolute or drive-letter targets, encoded and double-encoded separators, null-byte truncation on legacy stacks, symlink following, and the difference between checking the raw i.

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-path-traversal-and-file-access@git:20260903.6dac719
Exact content
mdr add unboundcompute/security-agent-skills/hunting-path-traversal-and-file-access@sha256:4d4ab20ea250f476

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_j5e632x5xy522qov.svg)](https://markdownregistry.com/a/art_j5e632x5xy522qov)

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Versions

versioncommittedcommitsizeaudit
git:20260903.6dac719 latest2026-09-03 6dac719 9,531 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 (9531 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_j5e632x5xy522qov
GET https://markdownregistry.com/api/v1/resolve?ref=unboundcompute/security-agent-skills/hunting-path-traversal-and-file-access
GET https://markdownregistry.com/api/v1/blob/4d4ab20ea250f47670cd5effdffa132812e4f762ed3da6ac0d3a0f51e610ada4

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