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CVE-2026-22016

High

                    Published: Apr 21, 2026                      ·  Modified: Apr 22, 2026                      ·  Source: NVD                

CVSS v3

7.5

🔗 NVD Official

📄 Description (English)

Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: JAXP). Supported versions that are affected are Oracle Java SE: 8u481, 8u481-b50, 8u481-perf, 11.0.30, 17.0.18, 21.0.10, 25.0.2, 26; Oracle GraalVM for JDK: 17.0.18 and 21.0.10; Oracle GraalVM Enterprise Edition: 21.3.17. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition accessible data. Note: This vulnerability can be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs. This vulnerability also applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. CVSS 3.1 Base Score 7.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

🤖 AI Executive Summary

CVE-2026-22016 is a high-severity vulnerability in Oracle Java SE and GraalVM affecting multiple versions (8u481, 11.0.30, 17.0.18, 21.0.10, 25.0.2, 26) through the JAXP component. The vulnerability allows unauthenticated remote attackers to gain unauthorized access to critical data without authentication or user interaction. With a CVSS score of 7.5 and no patch currently available, this poses an immediate risk to Saudi organizations relying on Java-based applications.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: May 4, 2026 00:54

🇸🇦 Saudi Arabia Impact Assessment

This vulnerability poses critical risk to Saudi banking sector (SAMA-regulated institutions, payment processors), government agencies (NCA, ministries), healthcare providers (MOH systems), energy sector (ARAMCO, utilities), and telecommunications (STC, Mobily). Java is widely deployed in enterprise applications, web services, and backend systems across these sectors. The JAXP component vulnerability enables data exfiltration from mission-critical systems without authentication, potentially exposing customer financial data, government records, and operational intelligence.

🏢 Affected Saudi Sectors

Banking and Financial Services Government and Public Administration Healthcare and Medical Services Energy and Utilities Telecommunications Insurance E-commerce and Retail Education

🎯 MITRE ATT&CK Techniques

T1190 - Exploit Public-Facing Application T1200 - Hardware Additions T1557 - Man-in-the-Middle T1040 - Traffic Capture or Replay T1041 - Exfiltration Over C2 Channel T1005 - Data from Local System T1213 - Data from Information Repositories

⚖️ Saudi Risk Score (AI)

8.2

/ 10.0

🔧 Remediation Steps (English)

IMMEDIATE ACTIONS:

1. Inventory all Java deployments across your organization, specifically identifying versions 8u481, 11.0.30, 17.0.18, 21.0.10, 25.0.2, and 26

2. Prioritize systems running Java in production environments, particularly those exposed to network access

3. Implement network segmentation to restrict access to Java-based services to trusted networks only

4. Monitor for suspicious data access patterns and unauthorized API calls to JAXP components



COMPENSATING CONTROLS (until patch available):

5. Deploy Web Application Firewalls (WAF) with rules to detect and block malicious JAXP payloads

6. Implement strict input validation and sanitization for all data fed to Java APIs

7. Disable Java Web Start and Java applets if not essential; use application whitelisting

8. Apply principle of least privilege to Java application service accounts

9. Enable comprehensive logging and monitoring of Java application behavior



DETECTION RULES:

10. Monitor for unusual JAXP API calls with suspicious XML/data inputs

11. Alert on unexpected outbound connections from Java processes

12. Track access to sensitive data repositories from Java applications

13. Monitor for XXE (XML External Entity) attack patterns in logs



PATCHING STRATEGY:

14. Subscribe to Oracle security advisories for patch availability

15. Establish expedited patching procedures for critical Java updates

16. Test patches in isolated environments before production deployment

🔧 خطوات المعالجة (العربية)

الإجراءات الفورية:

1. قم بحصر جميع نشرات Java في مؤسستك، مع تحديد الإصدارات 8u481 و 11.0.30 و 17.0.18 و 21.0.10 و 25.0.2 و 26

2. أعط الأولوية للأنظمة التي تشغل Java في بيئات الإنتاج، خاصة تلك المعرضة للوصول عبر الشبكة

3. طبق تقسيم الشبكة لتقييد الوصول إلى خدمات Java على الشبكات الموثوقة فقط

4. راقب أنماط الوصول إلى البيانات المريبة واستدعاءات API غير المصرح بها لمكونات JAXP

الضوابط البديلة (حتى توفر التصحيح):

5. نشر جدران حماية تطبيقات الويب (WAF) مع قواعد للكشف عن حمولات JAXP الضارة وحجبها

6. طبق التحقق الصارم من صحة المدخلات وتنظيفها لجميع البيانات المرسلة إلى واجهات برمجة تطبيقات Java

7. عطل Java Web Start وتطبيقات Java إذا لم تكن ضرورية؛ استخدم قائمة تطبيقات موثوقة

8. طبق مبدأ أقل امتياز على حسابات خدمة تطبيقات Java

9. فعّل التسجيل والمراقبة الشاملة لسلوك تطبيق Java

قواعد الكشف:

10. راقب استدعاءات JAXP API غير العادية مع مدخلات XML/بيانات مريبة

11. أصدر تنبيهات للاتصالات الخارجية غير المتوقعة من عمليات Java

12. تتبع الوصول إلى مستودعات البيانات الحساسة من تطبيقات Java

13. راقب أنماط هجمات XXE (XML External Entity) في السجلات

استراتيجية التصحيح:

14. اشترك في استشارات أمان Oracle لتوفر التصحيحات

15. أنشئ إجراءات تصحيح معجلة لتحديثات Java الحرجة

16. اختبر التصحيحات في بيئات معزولة قبل نشرها في الإنتاج

📋 Regulatory Compliance Mapping

🟢 NCA ECC 2024

ECC 2024 A.5.1.1 - Information Security Policies and Procedures ECC 2024 A.6.1.1 - Access Control and Authentication ECC 2024 A.8.1.1 - Asset Management and Inventory ECC 2024 A.12.2.1 - Change Management ECC 2024 A.12.6.1 - Management of Technical Vulnerabilities

🔵 SAMA CSF

SAMA CSF ID.AM-2 - Software Inventory and Management SAMA CSF PR.AC-1 - Access Control and Authentication SAMA CSF PR.PT-1 - Security Awareness and Training SAMA CSF DE.CM-1 - Detection and Monitoring SAMA CSF RS.MI-1 - Incident Response and Mitigation

🟡 ISO 27001:2022

ISO 27001:2022 A.5.1 - Policies for Information Security ISO 27001:2022 A.8.1 - Asset Management ISO 27001:2022 A.8.2 - Data Classification ISO 27001:2022 A.13.1 - Network Security ISO 27001:2022 A.14.2 - System Development and Maintenance

🟣 PCI DSS v4.0.1

PCI DSS 2.4 - Maintain Inventory of System Components PCI DSS 6.2 - Ensure Security Patches are Installed PCI DSS 11.2 - Run Automated Vulnerability Scanning Tools

🔗 References & Sources 1

🔗

https://www.oracle.com/security-alerts/cpuapr2026.html

secalert_us@oracle.com

📊 CVSS Score

7.5

/ 10.0 — High

📊 CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack VectorN — None / Network

Attack ComplexityL — Low / Local

Privileges RequiredN — None / Network

User InteractionN — None / Network

ScopeU — Unchanged

ConfidentialityH — High

IntegrityN — None / Network

AvailabilityN — None / Network

📋 Quick Facts

Severity High

CVSS Score7.5

EPSS0.03%

Exploit No

Patch ✗ No

Published 2026-04-21

Source Feed nvd

🇸🇦 Saudi Risk Score

8.2

/ 10.0 — Saudi Risk

Priority: CRITICAL

⚡ Actions

🔗 NVD Official Page ⚡ Exploit-DB Search 🐙 GitHub PoC Search 🎯 MITRE ATT&CK 📊 CVE Details

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CVE-2026-22016

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