# A08 Data Integrity Failures

> Skills for exploiting software and data integrity failures including HTTP request smuggling per OWASP A08:2021.

- Skill: `omkar-ukirde/a08-data-integrity-failures` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add omkar-ukirde/a08-data-integrity-failures`
- Raw SKILL.md: https://api.skillmd.com/api/skills/omkar-ukirde/a08-data-integrity-failures/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Security
- Author: omkar-ukirde (https://skillmd.com/u/omkar-ukirde)
- Updated: 2026-09-21
- Page: https://skillmd.com/skills/omkar-ukirde/a08-data-integrity-failures

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# Software and Data Integrity Failures (OWASP A08)

Violations of code and infrastructure integrity assumptions.

## Skills

- [HTTP Request Smuggling](references/http-request-smuggling.md) - Request desync attacks

## Quick Reference

| Technique | Frontend | Backend |
|-----------|----------|---------|
| CL.TE | Content-Length | Transfer-Encoding |
| TE.CL | Transfer-Encoding | Content-Length |
| TE.TE | Both with obfuscation | |