---
id: 6870
title: "Primer on GitHub Actions Security - Threat Model, Attacks and Defenses (Part 1/2)"
source_domain: wiz.io
source_url: "https://www.wiz.io/blog/github-actions-security-threat-model-and-defenses"
published_at: "2026-04-14T11:33:05Z"
tags: ["ai-security", "supply-chain", "github-actions", "ci-cd", "threat-model", "wiz", "trust-boundary", "script-injection"]
phying_url: "https://phying.com/item/6870"
lang: en
---

# Primer on GitHub Actions Security - Threat Model, Attacks and Defenses (Part 1/2)

## Summary

Part one of a GitHub Actions security primer: the trusted vs untrusted threat model, three risks — PR pwnage, script injection, third-party components — seen in tj-actions, Ultralytics, Trivy.

## Intelligence Metadata

- **Sources:** wiz.io
- **Published:** 2026-04-14T11:33:05Z
- **Original:** https://www.wiz.io/blog/github-actions-security-threat-model-and-defenses
- **Phying News:** https://phying.com/item/6870