Over 5,500 GitHub Repositories Infected in ‘Megalodon’ Supply Chain Attack
Fake automated commits injected GitHub Actions workflows containing payloads to steal credentials, CI secrets, keys, and tokens. The post Over 5,500 GitHub Repositories Infected in ‘Megalodon’ Supply Chain Attack appeared first on SecurityWeek.
More than 5,500 GitHub repositories were infected with malware in a supply chain attack that relies on automated commits, security researchers warn.
The campaign, dubbed Megalodon, relies on GitHub Actions workflows containing a payload designed to steal credentials, keys, tokens, and other secrets.
The workflows, SafeDep says, were injected through over 5,700 malicious commits pushed to the impacted repositories within a six-hour window, on May 18.
Related breach coverage
- ‘SymJack’ Attack Turns AI Coding Agents Into Supply Chain Attack Delivery Systems2026-05-27
Malicious repositories and disguised symlinks can trick AI coding agents into silently installing attacker-controlled MCP servers capable of stealing secrets, compromising CI pipelines, and deploying malicious code. The post ‘SymJack’ Attack Turns AI Coding Agents Into Supply Chain Attack Delivery Systems appeared first on SecurityWeek.
- Grafana Says Codebase and Other Data Stolen via TanStack Supply Chain Attack2026-05-22
Hackers accessed Grafana’s GitHub repositories after a token compromised in the TanStack attack was not rotated. The post Grafana Says Codebase and Other Data Stolen via TanStack Supply Chain Attack appeared first on SecurityWeek.
- Supply Chain Attack Hits 32 Red Hat NPM Packages2026-06-02
Hackers published 96 malicious package versions, injected with a credential-stealing worm similar to Mini Shai-Hulud. The post Supply Chain Attack Hits 32 Red Hat NPM Packages appeared first on SecurityWeek.
- 1Password Teams With OpenAI to Stop AI Coding Agents From Leaking Credentials2026-05-20
1Password says AI coding agents should never hold persistent secrets, introducing a just-in-time credential model for OpenAI Codex designed to keep credentials out of prompts, code repositories, and model context. The post 1Password Teams With OpenAI to Stop AI Coding Agents From Leaking Credentials appeared first on SecurityWeek.
