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Vulnerabilities

CVE-2026-26934

Medium
Improper Validation of Specified Quantity in Input (CWE-1284) in Kibana can allow an authenticated attacker with view-only privileges to cause a Denial of Service via Input Data Manipulation (CAPEC-15
CWE-1284 — Weakness Type
Published: Feb 26, 2026  ·  Modified: Mar 5, 2026  ·  Source: NVD
CVSS v3
6.5
🔗 NVD Official
📄 Description (English)

Improper Validation of Specified Quantity in Input (CWE-1284) in Kibana can allow an authenticated attacker with view-only privileges to cause a Denial of Service via Input Data Manipulation (CAPEC-153). An attacker can send a specially crafted, malformed payload causing excessive resource consumption and resulting in Kibana becoming unresponsive or crashing.

🤖 AI Executive Summary

CVE-2026-26934 is a medium-severity vulnerability in Kibana that allows authenticated users with view-only privileges to cause denial of service through malformed input payloads. The vulnerability stems from improper validation of input quantity, leading to excessive resource consumption and potential service unavailability.

📄 Description (Arabic)

يؤثر هذا الضعف على Kibana ويسمح للمستخدمين المصرح لهم برؤية البيانات فقط بإرسال حمولات مشوهة خاصة تسبب استهلاك موارد مفرط. يمكن للمهاجم استغلال عدم التحقق الكافي من كمية المدخلات لجعل Kibana غير مستجيب أو متعطل.

🤖 ملخص تنفيذي (AI)

هذا الثغرة متوسطة الخطورة في Kibana تسمح للمستخدمين المصرح لهم برؤية البيانات فقط بإحداث حالة عدم توفر الخدمة من خلال حمولات مشوهة. ينتج الضعف عن التحقق غير الكافي من كمية المدخلات مما يؤدي إلى استهلاك موارد مفرط وعدم توفر الخدمة.

🤖 AI Intelligence Analysis Analyzed: May 12, 2026 11:36
🇸🇦 Saudi Arabia Impact Assessment
Saudi Relevance: high
🏢 Affected Saudi Sectors
banking telecom energy government healthcare
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
6.0
/ 10.0
🔧 Remediation Steps (English)
Update Kibana to the latest patched version immediately. Implement network-level input validation and rate limiting for API requests. Restrict view-only user privileges to essential operations only. Monitor Kibana resource consumption and implement alerting for anomalous patterns. Apply principle of least privilege for user account permissions.
🔧 خطوات المعالجة (العربية)
قم بتحديث Kibana إلى أحدث إصدار معدل فوراً. طبق التحقق من المدخلات على مستوى الشبكة وتحديد معدل طلبات API. قيد امتيازات المستخدمين برؤية البيانات فقط للعمليات الأساسية. راقب استهلاك موارد Kibana وطبق التنبيهات للأنماط غير الطبيعية. طبق مبدأ أقل امتياز للحسابات.
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
A.7.1.1 A.7.1.2 A.12.4.1
🔵 SAMA CSF
ID.BE-5 PR.AC-1 PR.AC-4
🟡 ISO 27001:2022
A.6.1.1 A.9.1.1 A.9.2.1 A.9.4.3
📦 Affected Products / CPE 3 entries
elastic:kibana
elastic:kibana
elastic:kibana:9.3.0
📊 CVSS Score
6.5
/ 10.0 — Medium
📊 CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack VectorN — None / Network
Attack ComplexityL — Low / Local
Privileges RequiredL — Low / Local
User InteractionN — None / Network
ScopeU — Unchanged
ConfidentialityN — None / Network
IntegrityN — None / Network
AvailabilityH — High
📋 Quick Facts
Severity Medium
CVSS Score6.5
CWECWE-1284
Exploit No
Patch ✗ No
Published 2026-02-26
Source Feed nvd
Views 5
🇸🇦 Saudi Risk Score
6.0
/ 10.0 — Saudi Risk
Priority: MEDIUM
🏷️ Tags
CWE-1284
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