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hunt-race-condition

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Hunting skill for race condition vulnerabilities. Built from 12 public bug bounty reports including modern HTTP/2 single-packet attack cases (James Kettle DEF CON 2023 "Smashing the State Machine"; RyotaK / Flatt Security 10,000-request first-sequence-sync expansion 2024). Covers coupon double-redemption, gift-card double-spend, MFA-OTP-validate race, account-create race, faucet/crypto token double-mint, email-activation race, vote/upvote inflation, password-reset token race, rate-limit bypass via concurrent requests. Use when hunting race conditions, TOCTOU bugs, MFA-bypass-via-timing.

redteam/hunt-race-condition/SKILL.md

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Source commit 1260244136edc6ae698d76d3d526f503e322778d

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Matches the observed repository HEAD
Yes
Scanner rules are current
Yes
Repository scan complete
No
Skill scan complete
No
Observed behavior
Network or broad shell
Last checked
Nov 9, 2026

These are observations at the recorded commit, not a guarantee of safety. Review the source before running it.

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Repository stars (not skill ratings)
1,347
Repository last updated
Nov 7, 2026
License
MIT

Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.

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## Crown Jewel Targets

Race conditions are high-severity findings because they break financial, access control, and integrity assumptions that defenders rarely stress-test. Highest payouts come from:

- **Monetary/credit systems** — double-spending gift cards, coupons, referral bonuses, promotional credits, wallet balances
- **Vote/reputation manipulation** — upvoting the same content multiple times, gaming leaderboards or trending algorithms
- **Account limits bypass** — exceeding free-tier quotas, bypassing "one per user" restrictions on invites, trial activations, or API key generation
- **Privilege escalation** — racing role assignment or permission checks during user creation/upgrade flows
- **Deletion bypass** — reading or exfiltrating data during a narrow window between "marked for deletion" and "actually deleted"
- **Payment flows** — charging a card once but receiving multiple fulfillments

**Best-paying asset types:** Fintech apps, SaaS platforms with credit/subscription models, social platforms with reputation systems, e-commerce checkout flows, OAuth/SSO token endpoints.

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