Prompt injection: fake bug report can hijack coding agent, private repos leaked
Three recent cases show the risk of prompt injection: a fake bug report can hijack an agent, an attack called GitLost got GitHub's AI agent to leak private repositories, and Pillar Security gained Editor-level access in a Google tool.
Who is affected and how
- tech lead
- Limit which private repositories the agent can access, and do not give it a broader token than it needs.
- senior developer
- Review the steps an agent proposes before carrying out any instruction that originates from external text.
Sources
- Agentjacking: a fake bug report can hijack your AI coding agentthenextweb.com · Aug 25, 2026
- Cybersecurity Researchers Uncover Flaw in Google AI Coding Tool - DevOps.comdevops.com · Aug 28, 2026
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