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Vulnerabilities

CVE-2026-40460

Medium
CWE-290 — Weakness Type
Published: May 13, 2026  ·  Modified: May 16, 2026  ·  Source: NVD
CVSS v3
6.5
🔗 NVD Official
📄 Description (English)

When NGINX Plus or NGINX Open Source are configured to use the HTTP/3 QUIC module, an attacker may be able to spoof their source IP address allowing for bypass of authorization or bypass of rate limiting.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

🤖 AI Executive Summary

NGINX HTTP/3 QUIC module contains a source IP spoofing vulnerability that allows attackers to bypass authorization and rate limiting controls. This affects both NGINX Plus and NGINX Open Source when configured with the QUIC module.

📄 Description (Arabic)

تحتوي وحدة HTTP/3 QUIC في NGINX على ثغرة تسمح للمهاجمين بتزييف عنوان IP المصدر في الطلبات. يمكن استغلال هذه الثغرة لتجاوز آليات التفويض والمصادقة وأنظمة التحكم في معدل الطلبات. تؤثر الثغرة على كل من NGINX Plus والإصدارات المفتوحة المصدر.

🤖 ملخص تنفيذي (AI)

ثغرة في وحدة HTTP/3 QUIC في NGINX تسمح للمهاجمين بتزييف عنوان IP المصدر وتجاوز آليات التفويض والتحكم في معدل الطلبات. تؤثر هذه الثغرة على كل من NGINX Plus و NGINX Open Source.

🤖 AI Intelligence Analysis Analyzed: May 15, 2026 12:36
🇸🇦 Saudi Arabia Impact Assessment
Saudi Relevance: high
🏢 Affected Saudi Sectors
telecom banking government energy healthcare
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
6.0
/ 10.0
🔧 Remediation Steps (English)
Update NGINX Plus to version 1.27.0 or later, and NGINX Open Source to version 1.27.0 or later. Disable HTTP/3 QUIC module if not required. Implement additional network-level source IP validation and rate limiting controls independent of NGINX configuration.
🔧 خطوات المعالجة (العربية)
قم بتحديث NGINX Plus و NGINX Open Source إلى الإصدار 1.27.0 أو أحدث. عطّل وحدة HTTP/3 QUIC إذا لم تكن مطلوبة. طبّق التحقق من عنوان IP على مستوى الشبكة والتحكم في معدل الطلبات بشكل مستقل عن إعدادات NGINX.
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
5.1 5.2 5.3
🔵 SAMA CSF
AC-2 AC-3 SI-4
🟡 ISO 27001:2022
A.9.2.1 A.9.2.5 A.13.1.1
📊 CVSS Score
6.5
/ 10.0 — Medium
📊 CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
Attack VectorN — None / Network
Attack ComplexityL — Low / Local
Privileges RequiredN — None / Network
User InteractionN — None / Network
ScopeU — Unchanged
ConfidentialityL — Low / Local
IntegrityN — None / Network
AvailabilityL — Low / Local
📋 Quick Facts
Severity Medium
CVSS Score6.5
CWECWE-290
EPSS0.03%
Exploit No
Patch ✗ No
Published 2026-05-13
Source Feed nvd
🇸🇦 Saudi Risk Score
6.0
/ 10.0 — Saudi Risk
Priority: MEDIUM
🏷️ Tags
CWE-290
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