📄 Description (English)
A security vulnerability has been detected in NousResearch hermes-agent up to 2026.4.30. This vulnerability affects the function _handle_webhook_request of the file gateway/platforms/feishu.py of the component Webhook Endpoint. Such manipulation leads to resource consumption. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
🤖 AI Executive Summary
CVE-2026-10224 is a medium-severity resource exhaustion vulnerability in NousResearch hermes-agent affecting webhook endpoint handling for Feishu integration. The vulnerability allows remote attackers to consume excessive resources through the _handle_webhook_request function, potentially causing denial of service. With public exploit disclosure and no vendor patch available, immediate mitigation is required for organizations using this component.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Jun 1, 2026 10:10
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability primarily impacts Saudi organizations using NousResearch hermes-agent for enterprise communication and workflow automation, particularly in: (1) Banking sector (SAMA-regulated institutions) using Feishu for internal communications and API integrations; (2) Government agencies (NCA oversight) deploying hermes-agent for automated processes; (3) Telecommunications companies (STC, Mobily) using webhook-based integrations; (4) Large enterprises with Feishu-integrated systems. The resource exhaustion attack could disrupt critical business operations and communication channels, affecting service availability and potentially impacting compliance with SAMA and NCA security requirements.
🏢 Affected Saudi Sectors
Banking and Financial Services
Government and Public Administration
Telecommunications
Enterprise Software and Services
Healthcare
Energy and Utilities
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
6.2
/ 10.0
🔧 Remediation Steps (English)
Immediate Actions:
1. Identify all systems running NousResearch hermes-agent versions up to 2026.4.30 and document Feishu webhook integrations
2. Implement network-level rate limiting on webhook endpoints to restrict request frequency from external sources
3. Deploy request size limits and timeout configurations for webhook processing
4. Monitor CPU and memory consumption on affected systems for anomalous patterns
Compensating Controls:
1. Implement Web Application Firewall (WAF) rules to throttle requests to /gateway/platforms/feishu.py endpoints
2. Configure reverse proxy (nginx/Apache) with connection limits and request queuing
3. Isolate webhook processing to dedicated resource-constrained containers with memory/CPU limits
4. Enable detailed logging of webhook requests with source IP, payload size, and processing time
5. Implement alerting for sustained high resource consumption on webhook handlers
Detection Rules:
1. Monitor for repeated webhook requests from single source IP within short time windows
2. Alert on webhook request payloads exceeding normal size thresholds
3. Track webhook processing time anomalies and resource utilization spikes
4. Log all failed webhook authentications and malformed requests
Long-term:
1. Monitor NousResearch security advisories for patch availability
2. Evaluate alternative webhook solutions or upgrade hermes-agent when patched version is released
3. Consider implementing API gateway solutions with built-in DDoS protection
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع الأنظمة التي تقوم بتشغيل NousResearch hermes-agent بإصدارات تصل إلى 2026.4.30 وتوثيق تكاملات Feishu webhook
2. تنفيذ تحديد معدل على مستوى الشبكة على نقاط نهاية webhook لتقييد تكرار الطلبات من المصادر الخارجية
3. نشر حدود حجم الطلب وتكوينات المهلة الزمنية لمعالجة webhook
4. مراقبة استهلاك CPU والذاكرة على الأنظمة المتأثرة للكشف عن الأنماط الشاذة
الضوابط التعويضية:
1. تنفيذ قواعد جدار حماية تطبيقات الويب (WAF) لتقليل معدل الطلبات إلى نقاط نهاية /gateway/platforms/feishu.py
2. تكوين الخادم الوكيل العكسي (nginx/Apache) بحدود الاتصال وقائمة انتظار الطلبات
3. عزل معالجة webhook إلى حاويات مخصصة محدودة الموارد بحدود الذاكرة/CPU
4. تفعيل تسجيل مفصل لطلبات webhook مع عنوان IP المصدر وحجم الحمولة ووقت المعالجة
5. تنفيذ التنبيهات لاستهلاك الموارد المرتفع المستمر على معالجات webhook
قواعد الكشف:
1. مراقبة طلبات webhook المتكررة من عنوان IP واحد في نوافذ زمنية قصيرة
2. التنبيه على حمولات طلبات webhook التي تتجاوز حدود الحجم الطبيعية
3. تتبع الشذوذ في وقت معالجة webhook واستخدام الموارد
4. تسجيل جميع عمليات المصادقة الفاشلة في webhook والطلبات المشوهة
المدى الطويل:
1. مراقبة مستشارات أمان NousResearch لتوفر التصحيحات
2. تقييم حلول webhook البديلة أو ترقية hermes-agent عند إصدار نسخة مصححة
3. النظر في تنفيذ حلول بوابة API مع حماية DDoS مدمجة
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.12.6.1 - Management of technical vulnerabilities
ECC 2024 A.12.2.1 - Change management procedures
ECC 2024 A.5.2.1 - Information security policies and procedures
🔵 SAMA CSF
SAMA CSF ID.RA-1 - Asset management and vulnerability identification
SAMA CSF PR.IP-12 - System and information integrity
SAMA CSF DE.CM-1 - Detection and monitoring of anomalous activity
🟡 ISO 27001:2022
ISO 27001:2022 A.12.2.1 - Change management
ISO 27001:2022 A.12.6.1 - Management of technical vulnerabilities
ISO 27001:2022 A.8.1.1 - Inventory of assets
🟣 PCI DSS v4.0.1
PCI DSS 6.2 - Security patches and updates
PCI DSS 11.2 - Vulnerability scanning
🔗 References & Sources 5