📄 Description (English)
Nanobot prior to version 0.2.1 contains a server-side request forgery vulnerability in the web_fetch tool that allows remote attackers to reach internal or private network hosts by supplying a URL that redirects to a loopback or private address via a 3xx Location header. Attackers can exploit the automatic HTTP redirect following behavior in the httpx library to bypass initial URL validation and cause the runtime to send outbound requests to internal hosts before final resolved URL validation is applied.
🤖 AI Executive Summary
CVE-2026-49138 is a Server-Side Request Forgery (SSRF) vulnerability in Nanobot versions prior to 0.2.1 that allows attackers to bypass URL validation through HTTP redirects, enabling access to internal and private network resources. The vulnerability exploits the httpx library's automatic redirect-following behavior to reach loopback addresses and internal hosts. While currently unpatched with no public exploits available, this poses a significant risk to organizations using Nanobot for web automation and data fetching tasks.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Jun 2, 2026 00:35
🇸🇦 Saudi Arabia Impact Assessment
Saudi organizations using Nanobot for web scraping, API integration, or automated data collection face significant risk. Most vulnerable sectors include: (1) Banking/SAMA-regulated institutions using Nanobot for financial data aggregation or market monitoring; (2) Government agencies (NCA, CITC) employing Nanobot for intelligence gathering or compliance monitoring; (3) Healthcare providers using it for data integration; (4) Energy sector (ARAMCO, utilities) for operational monitoring; (5) Telecommunications (STC, Mobily) for network management. Attackers could exploit this to access internal banking systems, government databases, healthcare records, or critical infrastructure management interfaces through SSRF attacks.
🏢 Affected Saudi Sectors
Banking and Financial Services
Government and Public Administration
Healthcare and Medical Services
Energy and Utilities
Telecommunications
Technology and Software Development
E-commerce and Retail
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
6.2
/ 10.0
🔧 Remediation Steps (English)
Immediate Actions:
1. Inventory all Nanobot deployments across your organization and identify version numbers
2. Isolate or restrict network access from systems running Nanobot versions prior to 0.2.1
3. Implement network segmentation to prevent Nanobot instances from accessing internal resources
Compensating Controls (until patch available):
1. Deploy a web proxy/firewall between Nanobot and internal networks with strict URL whitelist policies
2. Disable HTTP redirect following in httpx configuration if possible through Nanobot settings
3. Implement DNS filtering to block resolution of private IP ranges (10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16, 127.0.0.0/8)
4. Use network ACLs to prevent outbound connections from Nanobot to internal subnets
5. Monitor and log all outbound HTTP requests from Nanobot instances
Detection Rules:
1. Alert on HTTP 3xx responses followed by requests to private IP ranges or loopback addresses
2. Monitor for Location headers containing 127.0.0.1, 169.254.x.x, or private IP ranges
3. Track redirect chains that resolve to internal addresses
4. Log and alert on any Nanobot process attempting connections to RFC1918 addresses
Patching:
1. Monitor Nanobot GitHub repository for version 0.2.1 release
2. Establish testing environment to validate patch before production deployment
3. Plan immediate upgrade once patch is available
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. قم بحصر جميع نشرات Nanobot عبر مؤسستك وحدد أرقام الإصدارات
2. عزل أو تقييد الوصول إلى الشبكة من الأنظمة التي تقوم بتشغيل إصدارات Nanobot السابقة للإصدار 0.2.1
3. تنفيذ تقسيم الشبكة لمنع نوى Nanobot من الوصول إلى الموارد الداخلية
الضوابط التعويضية (حتى توفر التصحيح):
1. نشر وكيل ويب/جدار حماية بين Nanobot والشبكات الداخلية مع سياسات قائمة بيضاء صارمة للعناوين
2. تعطيل متابعة إعادة التوجيه HTTP في إعدادات httpx إن أمكن من خلال إعدادات Nanobot
3. تنفيذ تصفية DNS لحظر دقة نطاقات IP الخاصة (10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16, 127.0.0.0/8)
4. استخدام قوائم التحكم في الوصول للشبكة لمنع الاتصالات الصادرة من Nanobot إلى الشبكات الفرعية الداخلية
5. مراقبة وتسجيل جميع طلبات HTTP الصادرة من نوى Nanobot
قواعد الكشف:
1. تنبيه على استجابات HTTP 3xx متبوعة بطلبات إلى نطاقات IP خاصة أو عناوين loopback
2. مراقبة رؤوس Location التي تحتوي على 127.0.0.1 أو 169.254.x.x أو نطاقات IP خاصة
3. تتبع سلاسل إعادة التوجيه التي تحل إلى عناوين داخلية
4. تسجيل والتنبيه على أي عملية Nanobot تحاول الاتصال بعناوين RFC1918
التصحيح:
1. مراقبة مستودع Nanobot GitHub لإصدار الإصدار 0.2.1
2. إنشاء بيئة اختبار للتحقق من صحة التصحيح قبل نشره في الإنتاج
3. التخطيط للترقية الفورية بمجرد توفر التصحيح
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.14.2.1 - Information security requirements for supplier relationships
ECC 2024 A.8.3.1 - Segregation of duties
ECC 2024 A.13.1.3 - Segregation of information networks
ECC 2024 A.13.2.1 - Network security perimeter
🔵 SAMA CSF
SAMA CSF ID.BE-3.2 - Organizational roles and responsibilities
SAMA CSF PR.AC-3.1 - Access control and user authentication
SAMA CSF PR.DS-2.1 - Data security and protection
SAMA CSF DE.CM-1.1 - Detection and monitoring
🟡 ISO 27001:2022
ISO 27001:2022 A.5.23 - Information security for supplier relationships
ISO 27001:2022 A.8.1.1 - Screening
ISO 27001:2022 A.8.3.1 - Segregation of duties
ISO 27001:2022 A.13.1.3 - Segregation of information networks
🟣 PCI DSS v4.0.1
PCI DSS 1.1.1 - Firewall configuration standards
PCI DSS 1.3.1 - Restrict inbound traffic
PCI DSS 6.2 - Security patches and updates
PCI DSS 11.3.1 - External vulnerability scanning
🔗 References & Sources 4
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https://github.com/HKUDS/nanobot/commit/545294c62c0947da40eb5b65288aaf02b5fdf632
disclosure@vulncheck.com
https://github.com/HKUDS/nanobot/pull/3928
disclosure@vulncheck.com
https://github.com/HKUDS/nanobot/releases/tag/v0.2.1
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/nanobot-ssrf-via-web-fetch-tool-redirect-following
disclosure@vulncheck.com