📄 Description (English)
Atlassian Jira Server and Data Center Path Traversal Vulnerability — Atlassian Jira Server and Data Center contain a path traversal vulnerability that allows a remote attacker to read particular files in the /WEB-INF/web.xml endpoint.
🤖 AI Executive Summary
CVE-2021-26086 is a critical path traversal vulnerability in Atlassian Jira Server and Data Center (CVSS 9.0) allowing remote attackers to read sensitive files including /WEB-INF/web.xml without authentication. This vulnerability exposes configuration data, credentials, and application secrets that could lead to complete system compromise. Exploitation is trivial with publicly available exploits, making immediate patching essential for all affected Saudi organizations.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 20, 2026 08:49
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability poses critical risk to Saudi government agencies, banking sector (SAMA-regulated institutions), and large enterprises using Jira for project management. Government entities under NCA oversight, financial institutions, and energy sector organizations (including ARAMCO subsidiaries) are particularly vulnerable. Exposure of web.xml files could reveal database credentials, API keys, and internal system architecture, enabling lateral movement and data exfiltration. Telecom operators (STC, Mobily) and healthcare providers using Jira are also at significant risk.
🏢 Affected Saudi Sectors
Government & Public Administration
Banking & Financial Services
Energy & Utilities
Telecommunications
Healthcare
Large Enterprises
Defense & Security
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
9.2
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all Jira Server and Data Center instances in your environment and document versions
2. Disable public access to Jira instances immediately if not already restricted
3. Implement network-level access controls (WAF rules, IP whitelisting) to restrict access to Jira endpoints
4. Review access logs for suspicious requests to /WEB-INF/web.xml and similar paths
PATCHING GUIDANCE:
1. Upgrade Jira Server to version 8.13.0 or later immediately
2. Upgrade Jira Data Center to version 8.13.0 or later
3. Test patches in non-production environment first
4. Schedule emergency patching windows for production systems
COMPENSATING CONTROLS (if patching delayed):
1. Deploy WAF rules to block requests containing 'WEB-INF' or path traversal patterns (../, ..\
2. Implement strict authentication and authorization checks
3. Restrict Jira access to internal networks only
4. Monitor for exploitation attempts using IDS/IPS
DETECTION RULES:
1. Alert on HTTP requests containing '/WEB-INF/' in URL path
2. Alert on requests with path traversal sequences (../, ..\, %2e%2e)
3. Monitor for 200 OK responses to /WEB-INF/web.xml requests
4. Log all unauthenticated access attempts to sensitive endpoints
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. حدد جميع مثيلات Jira Server و Data Center في بيئتك وتوثيق الإصدارات
2. عطّل الوصول العام إلى مثيلات Jira فوراً إن لم يكن مقيداً بالفعل
3. طبّق عناصر تحكم الوصول على مستوى الشبكة (قواعد WAF، تصفية IP) لتقييد الوصول إلى نقاط نهاية Jira
4. راجع سجلات الوصول للطلبات المريبة إلى /WEB-INF/web.xml والمسارات المماثلة
إرشادات التصحيح:
1. ترقية Jira Server إلى الإصدار 8.13.0 أو أحدث فوراً
2. ترقية Jira Data Center إلى الإصدار 8.13.0 أو أحدث
3. اختبر التصحيحات في بيئة غير الإنتاج أولاً
4. جدول نوافذ التصحيح الطارئة لأنظمة الإنتاج
الضوابط البديلة (إذا تأخر التصحيح):
1. نشر قواعد WAF لحجب الطلبات التي تحتوي على 'WEB-INF' أو أنماط اجتياز المسارات
2. طبّق فحوصات المصادقة والتفويض الصارمة
3. قيّد الوصول إلى Jira للشبكات الداخلية فقط
4. راقب محاولات الاستغلال باستخدام IDS/IPS
قواعد الكشف:
1. تنبيه على طلبات HTTP تحتوي على '/WEB-INF/' في مسار URL
2. تنبيه على الطلبات التي تحتوي على تسلسلات اجتياز المسارات
3. راقب استجابات 200 OK لطلبات /WEB-INF/web.xml
4. سجّل جميع محاولات الوصول غير المصرح بها إلى نقاط النهاية الحساسة
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
A.5.1.1 - Information security policies and procedures
A.6.1.1 - Access control policy
A.6.2.1 - User registration and access rights management
A.12.4.1 - Event logging
A.12.4.3 - Administrator and operator logs
A.14.2.1 - Secure development policy
🔵 SAMA CSF
ID.AM-2 - Software platforms and applications are inventoried
PR.AC-1 - Identities and credentials are issued and managed
PR.AC-4 - Access rights are managed
DE.CM-1 - The network is monitored for unauthorized connections
DE.CM-3 - Personnel activity is monitored
🟡 ISO 27001:2022
A.5.1.1 - Information security policy
A.6.1.1 - Access control policy
A.6.2.1 - User registration and access rights
A.8.1.1 - Screening
A.12.4.1 - Event logging
A.14.2.1 - Secure development policy
🟣 PCI DSS v4.0
Requirement 1.1 - Firewall configuration standards
Requirement 6.2 - Security patches installation
Requirement 10.2 - User access logging
Requirement 10.3 - Log protection
🔗 References & Sources 0
No references.
📦 Affected Products / CPE 1 entries
Atlassian:Jira Server and Data Center