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Global apt Government and Defense CRITICAL 39m Global general Technology / Consumer Protection MEDIUM 50m Global vulnerability Information Technology and Security CRITICAL 58m Global vulnerability Information Technology CRITICAL 1h Global apt Infrastructure, Transportation, Finance/Investment HIGH 2h Global vulnerability Information Technology and Infrastructure HIGH 3h Global data_breach Education HIGH 3h Global data_breach Education HIGH 4h Global vulnerability Information Technology CRITICAL 4h Global supply_chain Software Development and Technology HIGH 5h Global apt Government and Defense CRITICAL 39m Global general Technology / Consumer Protection MEDIUM 50m Global vulnerability Information Technology and Security CRITICAL 58m Global vulnerability Information Technology CRITICAL 1h Global apt Infrastructure, Transportation, Finance/Investment HIGH 2h Global vulnerability Information Technology and Infrastructure HIGH 3h Global data_breach Education HIGH 3h Global data_breach Education HIGH 4h Global vulnerability Information Technology CRITICAL 4h Global supply_chain Software Development and Technology HIGH 5h Global apt Government and Defense CRITICAL 39m Global general Technology / Consumer Protection MEDIUM 50m Global vulnerability Information Technology and Security CRITICAL 58m Global vulnerability Information Technology CRITICAL 1h Global apt Infrastructure, Transportation, Finance/Investment HIGH 2h Global vulnerability Information Technology and Infrastructure HIGH 3h Global data_breach Education HIGH 3h Global data_breach Education HIGH 4h Global vulnerability Information Technology CRITICAL 4h Global supply_chain Software Development and Technology HIGH 5h
Vulnerabilities

CVE-2026-28208

Medium ⚡ Exploit Available
Junrar is an open source java RAR archive library. Prior to version 7.5.8, a backslash path traversal vulnerability in `LocalFolderExtractor` allows an attacker to write arbitrary files with attacker-
CWE-22 — Weakness Type
Published: Feb 26, 2026  ·  Modified: Mar 5, 2026  ·  Source: NVD
CVSS v3
5.9
🔗 NVD Official
📄 Description (English)

Junrar is an open source java RAR archive library. Prior to version 7.5.8, a backslash path traversal vulnerability in `LocalFolderExtractor` allows an attacker to write arbitrary files with attacker-controlled content anywhere on the filesystem when a crafted RAR archive is extracted on Linux/Unix. This can often lead to remote code execution (e.g., overwriting shell profiles, source code, cron jobs, etc). Version 7.5.8 has a fix for the issue.

🤖 AI Executive Summary

Junrar versions prior to 7.5.8 contain a path traversal vulnerability (CWE-22) that allows attackers to write arbitrary files to the filesystem when extracting crafted RAR archives on Linux/Unix systems. This vulnerability can lead to remote code execution through overwriting critical files such as shell profiles, source code, or cron jobs. With an available exploit and patch, immediate remediation is required for all organizations using vulnerable Junrar versions in production environments.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: May 24, 2026 13:54
🇸🇦 Saudi Arabia Impact Assessment
Saudi organizations using Junrar in document processing, archive management, or file handling applications face significant risk. Most impacted sectors include: Banking (SAMA-regulated institutions processing customer documents), Government agencies (NCA oversight) handling classified archives, Healthcare organizations (MOH) managing patient records in RAR format, Telecommunications (STC, Mobily) processing customer data archives, and Energy sector (ARAMCO, SEC) managing technical documentation. The vulnerability's ability to achieve RCE through file overwriting poses critical risk to confidentiality, integrity, and availability of sensitive data.
🏢 Affected Saudi Sectors
Banking and Financial Services Government and Public Administration Healthcare Energy and Utilities Telecommunications Insurance Education
⚖️ Saudi Risk Score (AI)
7.2
/ 10.0
🔧 Remediation Steps (English)
Immediate Actions:
1. Identify all applications and services using Junrar library across your infrastructure
2. Audit logs for any RAR file extraction activities, particularly from untrusted sources
3. Implement network-level controls to restrict RAR file uploads from external sources

Patching Guidance:
1. Upgrade Junrar to version 7.5.8 or later immediately
2. Update all dependent applications and services that embed Junrar
3. Test patches in non-production environments before deployment
4. Prioritize patching for systems processing user-supplied RAR files

Compensating Controls (if immediate patching not possible):
1. Disable RAR extraction functionality if not critical to operations
2. Implement strict file upload validation - reject RAR files from untrusted sources
3. Run RAR extraction processes in isolated containers/sandboxes with minimal filesystem permissions
4. Use AppArmor or SELinux profiles to restrict file write operations from Java processes
5. Monitor extraction operations with strict file integrity checking

Detection Rules:
1. Monitor for unexpected file writes outside designated extraction directories
2. Alert on modifications to shell profiles (.bashrc, .bash_profile, .zshrc)
3. Track changes to cron job files (/etc/cron.d/, /var/spool/cron/)
4. Monitor Java process file descriptor activity for suspicious path patterns containing backslashes on Unix systems
5. Implement YARA rules to detect malicious RAR archive structures
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع التطبيقات والخدمات التي تستخدم مكتبة Junrar عبر البنية التحتية الخاصة بك
2. مراجعة السجلات لأي أنشطة استخراج ملفات RAR، خاصة من مصادر غير موثوقة
3. تطبيق عناصر تحكم على مستوى الشبكة لتقييد تحميلات ملفات RAR من مصادر خارجية

إرشادات التصحيح:
1. ترقية Junrar إلى الإصدار 7.5.8 أو أحدث فوراً
2. تحديث جميع التطبيقات والخدمات التابعة التي تتضمن Junrar
3. اختبار التصحيحات في بيئات غير الإنتاج قبل النشر
4. إعطاء الأولوية لتصحيح الأنظمة التي تعالج ملفات RAR المزودة من قبل المستخدم

عناصر التحكم البديلة (إذا لم يكن التصحيح الفوري ممكناً):
1. تعطيل وظيفة استخراج RAR إذا لم تكن حرجة للعمليات
2. تطبيق التحقق الصارم من تحميل الملفات - رفض ملفات RAR من مصادر غير موثوقة
3. تشغيل عمليات استخراج RAR في حاويات/بيئات معزولة بأذونات نظام ملفات محدودة
4. استخدام ملفات تعريف AppArmor أو SELinux لتقييد عمليات كتابة الملفات من عمليات Java
5. مراقبة عمليات الاستخراج مع فحص سلامة الملفات الصارم

قواعد الكشف:
1. مراقبة عمليات كتابة الملفات غير المتوقعة خارج أدلة الاستخراج المخصصة
2. التنبيه على التعديلات على ملفات تعريف الأوامر (.bashrc, .bash_profile, .zshrc)
3. تتبع التغييرات على ملفات مهام cron (/etc/cron.d/, /var/spool/cron/)
4. مراقبة نشاط وصف الملف لعملية Java للأنماط المريبة التي تحتوي على شرطات مائلة عكسية على أنظمة Unix
5. تطبيق قواعد YARA للكشف عن هياكل أرشيف RAR الضارة
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
A.12.6.1 - Management of technical vulnerabilities A.14.2.1 - Secure development policy A.12.2.1 - Monitoring of system use
🔵 SAMA CSF
ID.RA-1 - Asset management and inventory PR.IP-12 - Software development and quality assurance DE.CM-1 - Detection and analysis
🟡 ISO 27001:2022
A.12.6.1 - Management of technical vulnerabilities A.14.2.1 - Secure development policy A.12.2.1 - Monitoring of system use A.12.3.1 - Installation of software on operational systems
🟣 PCI DSS v4.0.1
6.2 - Ensure all system components and software are protected from known vulnerabilities 6.3.1 - Identify and implement security patches
📦 Affected Products / CPE 1 entries
junrar_project:junrar
📊 CVSS Score
5.9
/ 10.0 — Medium
📊 CVSS Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack VectorN — None / Network
Attack ComplexityH — High
Privileges RequiredN — None / Network
User InteractionN — None / Network
ScopeU — Unchanged
ConfidentialityN — None / Network
IntegrityH — High
AvailabilityN — None / Network
📋 Quick Facts
Severity Medium
CVSS Score5.9
CWECWE-22
Exploit ✓ Yes
Patch ✓ Yes
Published 2026-02-26
Source Feed nvd
Views 5
🇸🇦 Saudi Risk Score
7.2
/ 10.0 — Saudi Risk
Priority: HIGH
🏷️ Tags
exploit-available patch-available CWE-22
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