📄 Description (English)
WWBN AVideo is an open source video platform. In versions 29.0 and below, an incomplete SSRF fix in AVideo's LiveLinks proxy adds `isSSRFSafeURL()` validation but leaves DNS TOCTOU vulnerabilities where DNS rebinding between validation and the actual HTTP request redirects traffic to internal endpoints. Commit 8d8fc0cadb425835b4861036d589abcea4d78ee8 contains an updated fix.
🤖 AI Executive Summary
CVE-2026-41055 is a DNS TOCTOU vulnerability in WWBN AVideo versions 29.0 and below that bypasses SSRF protections through DNS rebinding attacks. An attacker can redirect traffic to internal endpoints by manipulating DNS responses between validation and HTTP request execution. With CVSS 8.6 and publicly available exploits, this poses significant risk to organizations hosting AVideo platforms, particularly those exposing video services to untrusted networks.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 24, 2026 02:49
🇸🇦 Saudi Arabia Impact Assessment
Saudi media and broadcasting organizations, government digital content platforms, educational institutions using AVideo for distance learning, and telecommunications companies offering video services are at highest risk. ARAMCO's internal video platforms, SAMA's digital infrastructure, and NCA-regulated media entities could face unauthorized access to internal systems. The vulnerability enables attackers to access internal APIs, databases, and administrative interfaces, potentially leading to data exfiltration, system compromise, and service disruption.
🏢 Affected Saudi Sectors
Media and Broadcasting
Government and Public Sector
Education
Telecommunications
Energy (ARAMCO subsidiaries)
Financial Services
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
8.2
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all AVideo instances in your environment and document their versions
2. Isolate or restrict network access to AVideo servers from untrusted networks
3. Implement DNS security controls: enable DNSSEC validation, use trusted DNS resolvers, implement DNS query logging
4. Deploy WAF rules to detect and block suspicious DNS rebinding patterns
PATCHING:
1. Upgrade to AVideo version 30.0 or later immediately
2. Apply commit 8d8fc0cadb425835b4861036d589abcea4d78ee8 if running custom builds
3. Test patches in staging environment before production deployment
COMPENSATING CONTROLS (if immediate patching not possible):
1. Implement network segmentation to isolate AVideo from internal systems
2. Use IP whitelisting for LiveLinks proxy access
3. Disable LiveLinks proxy functionality if not required
4. Implement strict egress filtering to prevent internal network access
DETECTION:
1. Monitor for multiple DNS A record changes for the same domain within short timeframes
2. Alert on HTTP requests to private IP ranges (10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16)
3. Log and review all LiveLinks proxy requests for suspicious patterns
4. Implement IDS signatures for DNS rebinding attack patterns
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. حدد جميع مثيلات AVideo في بيئتك وتوثيق إصداراتها
2. عزل أو تقييد الوصول إلى خوادم AVideo من الشبكات غير الموثوقة
3. تنفيذ عناصر تحكم أمان DNS: تفعيل التحقق من DNSSEC، استخدام محللات DNS موثوقة، تنفيذ تسجيل استعلامات DNS
4. نشر قواعد WAF للكشف عن أنماط DNS rebinding المريبة وحجبها
التصحيح:
1. ترقية إلى AVideo الإصدار 30.0 أو أحدث فوراً
2. تطبيق commit 8d8fc0cadb425835b4861036d589abcea4d78ee8 إذا كنت تشغل بناءات مخصصة
3. اختبر التصحيحات في بيئة التجميع قبل نشرها في الإنتاج
عناصر التحكم البديلة (إذا لم يكن التصحيح الفوري ممكناً):
1. تنفيذ تقسيم الشبكة لعزل AVideo عن الأنظمة الداخلية
2. استخدام القائمة البيضاء للعناوين IP لوصول LiveLinks proxy
3. تعطيل وظيفة LiveLinks proxy إذا لم تكن مطلوبة
4. تنفيذ تصفية الخروج الصارمة لمنع الوصول إلى الشبكة الداخلية
الكشف:
1. مراقبة تغييرات سجلات DNS A المتعددة للمجال نفسه في فترات زمنية قصيرة
2. تنبيهات على طلبات HTTP إلى نطاقات IP خاصة
3. تسجيل ومراجعة جميع طلبات LiveLinks proxy للأنماط المريبة
4. تنفيذ توقيعات IDS لأنماط هجمات DNS rebinding
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.14.2.1 - Information security requirements for supplier relationships
ECC 2024 A.8.3.2 - Segregation of networks
ECC 2024 A.13.1.3 - Segregation on networks
🔵 SAMA CSF
SAMA CSF ID.BE-3.2 - Organizational roles and responsibilities
SAMA CSF PR.AC-3.1 - Access control policies and procedures
SAMA CSF PR.DS-2.1 - Data security and protection
🟡 ISO 27001:2022
ISO 27001:2022 A.8.1.1 - Inventory of information and other assets
ISO 27001:2022 A.8.3.1 - Segregation of networks
ISO 27001:2022 A.8.3.2 - Segregation of information systems
🟣 PCI DSS v4.0.1
PCI DSS 1.2.1 - Restrict inbound traffic to what is necessary
PCI DSS 6.2 - Ensure security patches are installed
🔗 References & Sources 5
🔗
https://github.com/WWBN/AVideo/commit/0e56382921fc71e64829cd1ec35f04e338c70917
security-advisories@github.com
Patch
🔗
https://github.com/WWBN/AVideo/commit/8d8fc0cadb425835b4861036d589abcea4d78ee8
security-advisories@github.com
Patch
🔗
https://github.com/WWBN/AVideo/security/advisories/GHSA-793q-xgj6-7frp
security-advisories@github.com
Exploit
Mitigation
Vendor Advisory
🔗
https://github.com/WWBN/AVideo/security/advisories/GHSA-9x67-f2v7-63rw
security-advisories@github.com
Not Applicable
🔗
https://github.com/WWBN/AVideo/security/advisories/GHSA-793q-xgj6-7frp
134c704f-9b21-4f2e-91b3-4a467353bcc0
Exploit
Mitigation
Vendor Advisory
📦 Affected Products / CPE 1 entries
wwbn:avideo