📍 Report Snapshot

[!IMPORTANT] This report is intentionally sanitized for public GitHub publication. Sensitive identifiers, credentials, infrastructure values, and client-specific evidence are replaced with clear placeholders.

🧭 Quick Navigation

• Executive Summary
• Technical Analysis
• Impact
• Remediation
• Lessons Learned & Mitigation Strategy

[!TIP] For a fast review, start with the Executive Summary and Impact sections. For technical depth, continue into Technical Analysis and Remediation.

🏷️ Title

CVE-2026-42271 - LiteLLM AI Gateway MCP Command Injection RCE

🧾 Executive Summary

تم اكتشاف ثغرة أمنية حرجة في بوابة LiteLLM AI Gateway تسمح لمهاجم مُوثَّق (مُصادق) بتنفيذ أوامر عشوائية على الخادم المُستَضيف. تستغل الثغرة نقاط النهاية الخاصة باختبار Model Context Protocol (MCP)، حيث تقبل هذه النقاط تكويناً كاملاً لخادم MCP يُرسله المهاجم، يشمل حقول command و args و env، دون أي تنقية أو تدقيق أمني.

🔬 Technical Analysis

The weakness was assessed from an application-security and infrastructure-risk perspective. The core issue is classified as RCE and was documented in a sanitized form suitable for public portfolio publication.

📊 Impact

• Unauthorized command execution within the affected application context.
• Potential service takeover, data exposure, and lateral movement depending on deployment privileges.

🛠️ Remediation

• ترقية فورية: تحديث LiteLLM إلى الإصدار 1.83.7 أو أحدث
• تقييد الوصول: تطبيق قواعد جدار الحماية لتقييد الوصول إلى نقاط النهاية MCP
• تدقيق المفاتيح: مراجعة صلاحيات مفاتيح API وتقليلها إلى الحد الأدنى المطلوب
• مراقبة السجلات: تفعيل التسجيل والمراقبة لاكتشاف أي محاولات استغلال

pip install --upgrade litellm


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## 🧠 Lessons Learned & Mitigation Strategy
- Treat every integration boundary as untrusted, especially when application logic forwards user-controlled values to filesystems, shells, parsers, or external tools.
- Security reviews should validate the complete exploit chain, not only the first vulnerable endpoint; low-severity misconfigurations can become critical when chained.
- Public-facing documentation should describe risk, root cause, and remediation without exposing operational identifiers, credentials, or reusable exploitation artifacts.
- Defensive controls should combine preventive validation, runtime least privilege, telemetry, and patch governance to reduce both exploitability and blast radius.


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## 🧼 Publication Sanitization Notes
- Sensitive infrastructure identifiers, IP addresses, hostnames, credentials, hashes, and e-mail addresses were replaced with explicit placeholders.
- Reusable operational evidence was minimized or abstracted to keep the document suitable for public GitHub publication.
- The document uses a consultant-style structure aligned with common web security testing report practices such as OWASP WSTG reporting expectations.

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**Prepared as a professional cybersecurity portfolio report**  
Focused on clear risk communication, practical remediation, and defensive improvement.

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