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Title: When Your AI Code Agent Becomes an RCE Engine — The Culture of Code

Open Graph Title: When Your AI Code Agent Becomes an RCE Engine

X Title: When Your AI Code Agent Becomes an RCE Engine

Description: AI code agents that read repositories and execute commands introduce a new attack surface: anyone who can write to the repository can potentially execute code on the agent's machine. This article examines direct prompt injection vectors through GitHub comments, source code, README files, and test suites — and shows how to defend against them.

Open Graph Description: AI code agents that read repositories and execute commands introduce a new attack surface: anyone who can write to the repository can potentially execute code on the agent's machine. This article examines direct prompt injection vectors through GitHub comments, source code, README files, and test suites — and shows how to defend against them.

X Description: AI code agents that read repositories and execute commands introduce a new attack surface: anyone who can write to the repository can potentially execute code on the agent's machine. This article examines direct prompt injection vectors through GitHub comments, source code, README files, and test suites — and shows how to defend against them.

Keywords:

Opengraph URL: https://kpavlov.me/blog/agent-prompt-injection-basics/

X: @k_pavlov

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Domain: kpavlov.me

Hey, it has json ld scripts: 
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programminghttps://kpavlov.me/categories/programming
aihttps://kpavlov.me/categories/ai
ai-securityhttps://kpavlov.me/tags/ai-security
prompt-injectionhttps://kpavlov.me/tags/prompt-injection
llmhttps://kpavlov.me/tags/llm
githubhttps://kpavlov.me/tags/github
code-agentshttps://kpavlov.me/tags/code-agents
securityhttps://kpavlov.me/tags/security
GHSA-9ppg-jx86-fqw7https://github.com/cline/cline/security/advisories/GHSA-9ppg-jx86-fqw7
CVE-2025-53773https://nvd.nist.gov/vuln/detail/CVE-2025-53773
Skill-Inject benchmarkhttps://arxiv.org/abs/2602.20156
ToxicSkills campaignhttps://snyk.io/blog/toxicskills-malicious-ai-agent-skills-clawhub/
OWASP LLM01: Prompt Injectionhttps://genai.owasp.org/llmrisk/llm01-prompt-injection/
OWASP LLM02: Sensitive Information Disclosurehttps://genai.owasp.org/llmrisk/llm022025-sensitive-information-disclosure/
OWASP LLM06: Excessive Agencyhttps://genai.owasp.org/llmrisk/llm062025-excessive-agency/
The Core Problemhttps://kpavlov.me/blog/agent-prompt-injection-basics/#the-core-problem
1. Pull Request Commentshttps://kpavlov.me/blog/agent-prompt-injection-basics/#1-pull-request-comments
2. Source Code Commentshttps://kpavlov.me/blog/agent-prompt-injection-basics/#2-source-code-comments
3. README and Documentation Injectionhttps://kpavlov.me/blog/agent-prompt-injection-basics/#3-readme-and-documentation-injection
4. Test File Injectionhttps://kpavlov.me/blog/agent-prompt-injection-basics/#4-test-file-injection
5. Multi-Step Injectionhttps://kpavlov.me/blog/agent-prompt-injection-basics/#5-multi-step-injection
6. Build System Injectionhttps://kpavlov.me/blog/agent-prompt-injection-basics/#6-build-system-injection
Why This Becomes Remote Code Executionhttps://kpavlov.me/blog/agent-prompt-injection-basics/#why-this-becomes-remote-code-execution
Agent Configuration Files: A Trust Hierarchy Problemhttps://kpavlov.me/blog/agent-prompt-injection-basics/#agent-configuration-files-a-trust-hierarchy-problem
1. Treat Everything as Untrustedhttps://kpavlov.me/blog/agent-prompt-injection-basics/#1-treat-everything-as-untrusted
2. No Natural Language → Executionhttps://kpavlov.me/blog/agent-prompt-injection-basics/#2-no-natural-language--execution
3. Use Structured Actionshttps://kpavlov.me/blog/agent-prompt-injection-basics/#3-use-structured-actions
4. Sandbox Executionhttps://kpavlov.me/blog/agent-prompt-injection-basics/#4-sandbox-execution
5. Enforce Instruction Hierarchyhttps://kpavlov.me/blog/agent-prompt-injection-basics/#5-enforce-instruction-hierarchy
6. Audit Build Scripts Before Executionhttps://kpavlov.me/blog/agent-prompt-injection-basics/#6-audit-build-scripts-before-execution
7. Review Agent Configuration Fileshttps://kpavlov.me/blog/agent-prompt-injection-basics/#7-review-agent-configuration-files
8. Sanitize Outputshttps://kpavlov.me/blog/agent-prompt-injection-basics/#8-sanitize-outputs
Security Contexthttps://kpavlov.me/blog/agent-prompt-injection-basics/#security-context
Active vs Passive Injectionhttps://kpavlov.me/blog/agent-prompt-injection-basics/#active-vs-passive-injection
Testing Your Own Agenthttps://kpavlov.me/blog/agent-prompt-injection-basics/#testing-your-own-agent
Quick reality checkhttps://kpavlov.me/blog/agent-prompt-injection-basics/#quick-reality-check
Takeawayhttps://kpavlov.me/blog/agent-prompt-injection-basics/#takeaway
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