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Global vulnerability Enterprise Security, Software Development CRITICAL 1h Global vulnerability Software Development, Artificial Intelligence HIGH 1h Global apt Defense and Military CRITICAL 1h Global vulnerability Networking, Software, Infrastructure HIGH 1h Global phishing Information Technology HIGH 2h Global ransomware Multiple sectors CRITICAL 2h Global malware Multiple sectors CRITICAL 2h Global general Cybersecurity LOW 2h Global vulnerability Information Technology CRITICAL 2h Global vulnerability Technology/Software CRITICAL 3h Global vulnerability Enterprise Security, Software Development CRITICAL 1h Global vulnerability Software Development, Artificial Intelligence HIGH 1h Global apt Defense and Military CRITICAL 1h Global vulnerability Networking, Software, Infrastructure HIGH 1h Global phishing Information Technology HIGH 2h Global ransomware Multiple sectors CRITICAL 2h Global malware Multiple sectors CRITICAL 2h Global general Cybersecurity LOW 2h Global vulnerability Information Technology CRITICAL 2h Global vulnerability Technology/Software CRITICAL 3h Global vulnerability Enterprise Security, Software Development CRITICAL 1h Global vulnerability Software Development, Artificial Intelligence HIGH 1h Global apt Defense and Military CRITICAL 1h Global vulnerability Networking, Software, Infrastructure HIGH 1h Global phishing Information Technology HIGH 2h Global ransomware Multiple sectors CRITICAL 2h Global malware Multiple sectors CRITICAL 2h Global general Cybersecurity LOW 2h Global vulnerability Information Technology CRITICAL 2h Global vulnerability Technology/Software CRITICAL 3h
Vulnerabilities

CVE-2026-10566

Medium
CWE-20 — Weakness Type
Published: Jun 2, 2026  ·  Modified: Jun 5, 2026  ·  Source: NVD
CVSS v3
5.3
🔗 NVD Official
📄 Description (English)

A weakness has been identified in FoundationAgents MetaGPT up to 0.8.2. This affects the function Message.check_instruct_content of the file metagpt/schema.py. Executing a manipulation of the argument mapping can lead to deserialization. The attack is restricted to local execution. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

🤖 AI Executive Summary

CVE-2026-10566 is a medium-severity deserialization vulnerability in MetaGPT versions up to 0.8.2 affecting the Message.check_instruct_content function. The vulnerability requires local execution and allows attackers to manipulate argument mapping to trigger unsafe deserialization. While no public exploit currently exists and the attack surface is limited to local access, the lack of vendor response and public disclosure of the issue warrant immediate attention from organizations using MetaGPT in development or AI operations environments.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: Jun 2, 2026 18:36
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability poses moderate risk to Saudi organizations leveraging MetaGPT for AI-driven development and automation, particularly in: (1) Technology/Software Development sector — companies building AI applications using MetaGPT framework; (2) Government Digital Transformation initiatives — agencies adopting AI tools for process automation; (3) Financial Technology sector — fintech companies using MetaGPT for algorithmic development. The local-execution requirement limits exposure, but insider threats and compromised development environments could enable exploitation. Organizations in ARAMCO's digital transformation, STC's AI initiatives, and SAMA-regulated fintech platforms should assess MetaGPT usage in their development pipelines.
🏢 Affected Saudi Sectors
Technology/Software Development Government Digital Transformation Financial Technology Artificial Intelligence/Machine Learning Operations Research and Development
⚖️ Saudi Risk Score (AI)
4.2
/ 10.0
🔧 Remediation Steps (English)
Immediate Actions:
1. Inventory all systems running MetaGPT versions up to 0.8.2 across development, testing, and production environments
2. Restrict local access to systems running vulnerable MetaGPT versions through access controls and privilege management
3. Monitor development environments for suspicious deserialization activities and argument manipulation attempts

Patching Guidance:
1. Upgrade MetaGPT to version 0.8.3 or later once available (currently no patch released — monitor vendor repository)
2. If upgrade not immediately possible, implement input validation on Message.check_instruct_content function calls
3. Apply principle of least privilege to development accounts with MetaGPT access

Compensating Controls:
1. Implement code review processes for all MetaGPT integration code
2. Use sandboxed development environments isolated from production systems
3. Deploy application-level monitoring to detect deserialization anomalies
4. Restrict network access from development systems to sensitive resources

Detection Rules:
1. Monitor for unexpected deserialization operations in metagpt/schema.py
2. Alert on argument mapping manipulation attempts in Message class instantiation
3. Track unusual process execution from development environments
4. Log all access to MetaGPT configuration and schema files
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. حصر جميع الأنظمة التي تقوم بتشغيل إصدارات MetaGPT حتى 0.8.2 عبر بيئات التطوير والاختبار والإنتاج
2. تقييد الوصول المحلي للأنظمة التي تقوم بتشغيل إصدارات MetaGPT الضعيفة من خلال عناصر التحكم في الوصول وإدارة الامتيازات
3. مراقبة بيئات التطوير للكشف عن أنشطة إلغاء التسلسل المريبة ومحاولات معالجة الحجج

إرشادات التصحيح:
1. ترقية MetaGPT إلى الإصدار 0.8.3 أو أحدث عند توفره (لا يوجد تصحيح حالياً - راقب مستودع البائع)
2. إذا لم يكن الترقية ممكنة على الفور، قم بتطبيق التحقق من صحة الإدخال على استدعاءات دالة Message.check_instruct_content
3. تطبيق مبدأ أقل امتياز على حسابات التطوير التي لها وصول إلى MetaGPT

عناصر التحكم البديلة:
1. تطبيق عمليات مراجعة الكود لجميع أكواد تكامل MetaGPT
2. استخدام بيئات تطوير معزولة منفصلة عن أنظمة الإنتاج
3. نشر المراقبة على مستوى التطبيق للكشف عن شذوذ إلغاء التسلسل
4. تقييد الوصول إلى الشبكة من أنظمة التطوير إلى الموارد الحساسة

قواعد الكشف:
1. مراقبة عمليات إلغاء التسلسل غير المتوقعة في metagpt/schema.py
2. التنبيه على محاولات معالجة تعيين الحجج في إنشاء فئة Message
3. تتبع تنفيذ العمليات غير المعتادة من بيئات التطوير
4. تسجيل جميع الوصول إلى ملفات تكوين وشيما MetaGPT
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.14.2.1 - Secure development policy and procedures ECC 2024 A.14.2.5 - Secure development environment controls ECC 2024 A.12.6.1 - Management of technical vulnerabilities
🔵 SAMA CSF
SAMA CSF ID.BE-1 - Asset management and inventory SAMA CSF PR.DS-6 - Data input validation and error handling SAMA CSF DE.CM-1 - Detection and analysis of anomalies
🟡 ISO 27001:2022
ISO 27001:2022 A.8.1 - Organizational controls for information security ISO 27001:2022 A.14.2.1 - Secure development policy ISO 27001:2022 A.14.2.5 - Secure development environment ISO 27001:2022 A.12.6.1 - Management of technical vulnerabilities
📊 CVSS Score
5.3
/ 10.0 — Medium
📊 CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Attack VectorL — Low / Local
Attack ComplexityL — Low / Local
Privileges RequiredL — Low / Local
User InteractionN — None / Network
ScopeU — Unchanged
ConfidentialityL — Low / Local
IntegrityL — Low / Local
AvailabilityL — Low / Local
📋 Quick Facts
Severity Medium
CVSS Score5.3
CWECWE-20
EPSS0.03%
Exploit No
Patch ✗ No
Published 2026-06-02
Source Feed nvd
🇸🇦 Saudi Risk Score
4.2
/ 10.0 — Saudi Risk
Priority: MEDIUM
🏷️ Tags
CWE-20
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