novaestellar/novahaku · testing/hunt/hunt-auth-bypass/SKILL.md

hunt-auth-bypass skillA

hunt-auth-bypass is agent-read markdown (skill) from novaestellar/novahaku: Hunting skill for auth bypass vulnerabilities. Built from 12 public bug bounty reports across SAML XSW / parser-differential (GitHub Enterprise CVE-2025-25291/25292), SAML signature stripping (Uber, Rocket.Chat, samlify CVE-2025-47949), SAML domain enforcement bypass via control characters (HackerOne 2024), partner-portal cross-IdP assertion reuse (Slack), WordPress XMLRPC bypassing SSO (Uber), JWT alg-confusion HS256/RS256 (Jitsi), JWT signature-validation skip (Linktree, Newspack), and token-a.

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 novaestellar/novahaku/hunt-auth-bypass@git:20260910.546fe86
Exact content
mdr add novaestellar/novahaku/hunt-auth-bypass@sha256:eb2366c58c7130c0

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_aoj6k36ti6ulwamc.svg)](https://markdownregistry.com/a/art_aoj6k36ti6ulwamc)

0 badge views in 30 days

Versions

versioncommittedcommitsizeaudit
git:20260910.546fe86 latest2026-09-10 546fe86 32,386 BA view · diff
git:20260903.29924dd2026-09-03 29924dd 32,398 BA view · diff
git:20260903.fa855c42026-09-03 fa855c4 32,369 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 (32386 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

novaestellar/novahaku · 19 stars · license none · pushed 2026-09-10 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_aoj6k36ti6ulwamc
GET https://markdownregistry.com/api/v1/resolve?ref=novaestellar/novahaku/hunt-auth-bypass
GET https://markdownregistry.com/api/v1/blob/eb2366c58c7130c0c8b909ccf2a36a3c6339f43bd5f46f46615e50cbf1aabbe2