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Vulnerabilities

CVE-2025-66518

High
Apache Kyuubi Path Traversal Vulnerability Allows Unauthorized Local File Access
CWE-27 — Weakness Type
Published: Jan 5, 2026  ·  Modified: Feb 28, 2026  ·  Source: NVD
CVSS v3
8.8
🔗 NVD Official
📄 Description (English)

Any client who can access to Apache Kyuubi Server via Kyuubi frontend protocols can bypass server-side config kyuubi.session.local.dir.allow.list and use local files which are not listed in the config.

This issue affects Apache Kyuubi: from 1.6.0 through 1.10.2.

Users are recommended to upgrade to version 1.10.3 or upper, which fixes the issue.

🤖 AI Executive Summary

Apache Kyuubi versions 1.6.0 through 1.10.2 contain a path traversal vulnerability (CWE-27) that allows authenticated clients to bypass the kyuubi.session.local.dir.allow.list configuration and access local files outside the permitted directory list. This high-severity vulnerability (CVSS 8.8) enables unauthorized file system access through Kyuubi frontend protocols, potentially exposing sensitive data and system configurations.

📄 Description (Arabic)

تؤثر هذه الثغرة الأمنية على خوادم Apache Kyuubi المستخدمة في بيئات تحليل البيانات الضخمة، حيث يمكن لأي عميل لديه صلاحية الوصول إلى خادم Kyuubi عبر البروتوكولات الأمامية استغلال ثغرة اجتياز المسار للوصول إلى ملفات النظام المحلية التي لم يتم إدراجها في قائمة الدلائل المسموح بها. يتجاوز المهاجم آليات التحكم في الوصول المعتمدة على الإعدادات، مما يسمح بقراءة ملفات حساسة مثل بيانات الاعتماد وملفات التكوين والبيانات السرية. تشكل هذه الثغرة خطراً كبيراً على سرية البيانات وسلامة الأنظمة في المؤسسات التي تعتمد على Kyuubi لإدارة جلسات Apache Spark وHive.

🤖 ملخص تنفيذي (AI)

تحتوي إصدارات Apache Kyuubi من 1.6.0 إلى 1.10.2 على ثغرة اجتياز المسار (CWE-27) تسمح للعملاء المصادق عليهم بتجاوز إعدادات kyuubi.session.local.dir.allow.list والوصول إلى الملفات المحلية خارج قائمة الدلائل المسموح بها. هذه الثغرة عالية الخطورة (CVSS 8.8) تمكن من الوصول غير المصرح به لنظام الملفات عبر بروتوكولات Kyuubi الأمامية، مما قد يكشف البيانات الحساسة وإعدادات النظام.

🤖 AI Intelligence Analysis Analyzed: Feb 28, 2026 07:25
🇸🇦 Saudi Arabia Impact Assessment
Saudi organizations using Apache Kyuubi for big data analytics and distributed computing environments face significant risk of unauthorized data exposure. Financial institutions, government entities, and enterprises processing sensitive data through Kyuubi may experience breaches of confidential information, compliance violations under PDPL, and potential compromise of authentication credentials stored on affected systems.
🏢 Affected Saudi Sectors
القطاع المالي والمصرفي الجهات الحكومية قطاع الاتصالات وتقنية المعلومات قطاع الطاقة والمرافق المؤسسات البحثية والأكاديمية قطاع الرعاية الصحية
⚖️ Saudi Risk Score (AI)
8.0
/ 10.0
🔧 Remediation Steps (English)
1. Immediately upgrade Apache Kyuubi to version 1.10.3 or later to patch the path traversal vulnerability and restore proper enforcement of kyuubi.session.local.dir.allow.list configuration.
2. Conduct a comprehensive security audit of all Kyuubi server logs to identify any suspicious file access attempts outside permitted directories and assess potential data exposure during the vulnerability window.
3. Implement network segmentation to restrict Kyuubi frontend protocol access to authorized clients only, enforce strict authentication mechanisms, and review file system permissions on Kyuubi servers to minimize exposure of sensitive files.
🔧 خطوات المعالجة (العربية)
1. الترقية الفورية لـ Apache Kyuubi إلى الإصدار 1.10.3 أو أحدث لإصلاح ثغرة اجتياز المسار واستعادة التطبيق الصحيح لإعدادات kyuubi.session.local.dir.allow.list.
2. إجراء تدقيق أمني شامل لجميع سجلات خادم Kyuubi لتحديد أي محاولات وصول مشبوهة للملفات خارج الدلائل المسموح بها وتقييم احتمالية كشف البيانات خلال فترة الثغرة الأمنية.
3. تطبيق تجزئة الشبكة لتقييد الوصول إلى بروتوكولات Kyuubi الأمامية للعملاء المصرح لهم فقط، وفرض آليات مصادقة صارمة، ومراجعة أذونات نظام الملفات على خوادم Kyuubi لتقليل تعرض الملفات الحساسة.
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC-1-2 (Vulnerability and Patch Management) ECC-2-1 (Access Control) ECC-3-1 (System and Network Security) ECC-5-1 (Security Monitoring and Analysis)
🔵 SAMA CSF
CCC-1.1.1 (Asset Management) CCC-2.1.1 (Access Control) CCC-3.1.1 (Vulnerability Management) CCC-5.1.1 (Security Monitoring)
🟡 ISO 27001:2022
A.12.6.1 (Management of Technical Vulnerabilities) A.9.1.1 (Access Control Policy) A.9.4.1 (Information Access Restriction) A.12.4.1 (Event Logging)
📦 Affected Products / CPE 1 entries
apache:kyuubi
📊 CVSS Score
8.8
/ 10.0 — High
📊 CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack VectorN — None / Network
Attack ComplexityL — Low / Local
Privileges RequiredL — Low / Local
User InteractionN — None / Network
ScopeU — Unchanged
ConfidentialityH — High
IntegrityH — High
AvailabilityH — High
📋 Quick Facts
Severity High
CVSS Score8.8
CWECWE-27
EPSS0.03%
Exploit No
Patch ✓ Yes
Published 2026-01-05
Source Feed nvd
Views 2
🇸🇦 Saudi Risk Score
8.0
/ 10.0 — Saudi Risk
Priority: HIGH
🏷️ Tags
CWE-27
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