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Vulnerabilities

CVE-2026-33223

Medium
NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versions 2.11.15 and 2.12.6, the NATS message header `Nats-Request-Info:` is supposed to be a g
CWE-290 — Weakness Type
Published: Mar 25, 2026  ·  Modified: Mar 28, 2026  ·  Source: NVD
CVSS v3
6.4
🔗 NVD Official
📄 Description (English)

NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versions 2.11.15 and 2.12.6, the NATS message header `Nats-Request-Info:` is supposed to be a guarantee of identity by the NATS server, but the stripping of this header from inbound messages was not fully effective. An attacker with valid credentials for any regular client interface could thus spoof their identity to services which rely upon this header. Versions 2.11.15 and 2.12.6 contain a fix. No known workarounds are available.

🤖 AI Executive Summary

NATS-Server fails to properly strip the Nats-Request-Info header from inbound messages, allowing authenticated attackers to spoof their identity. This vulnerability affects versions prior to 2.11.15 and 2.12.6, potentially compromising message authentication in cloud-native messaging systems.

📄 Description (Arabic)

يفشل خادم NATS في إزالة رأس Nats-Request-Info بشكل فعال من الرسائل الواردة، مما يسمح للمستخدمين المصرح لهم بانتحال هويتهم أمام الخدمات التي تعتمد على هذا الرأس. يمكن للمهاجمين الذين لديهم بيانات اعتماد صحيحة لأي واجهة عميل عادية استغلال هذا الضعف. الإصدارات 2.11.15 و 2.12.6 تحتوي على إصلاح لهذه المشكلة.

🤖 ملخص تنفيذي (AI)

خادم NATS لا يقوم بإزالة رأس Nats-Request-Info بشكل صحيح من الرسائل الواردة، مما يسمح للمهاجمين المصرح لهم بانتحال هويتهم. يؤثر هذا الضعف على الإصدارات السابقة للإصدار 2.11.15 و 2.12.6.

🤖 AI Intelligence Analysis Analyzed: May 15, 2026 22:39
🇸🇦 Saudi Arabia Impact Assessment
Saudi Relevance: high
🏢 Affected Saudi Sectors
telecom banking energy government
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
6.0
/ 10.0
🔧 Remediation Steps (English)
Upgrade NATS-Server to version 2.11.15 or 2.12.6 or later immediately. Review access controls and audit logs for any suspicious identity claims. Implement network segmentation to limit exposure of NATS services to trusted clients only.
🔧 خطوات المعالجة (العربية)
قم بترقية خادم NATS إلى الإصدار 2.11.15 أو 2.12.6 أو أحدث على الفور. راجع سجلات التحكم في الوصول والتدقيق للتحقق من أي مطالبات هوية مريبة. قم بتنفيذ تقسيم الشبكة لتقليل تعرض خدمات NATS للعملاء الموثوقين فقط.
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
5.1.1 5.1.2 5.2.1
🔵 SAMA CSF
AC-2 AC-3 SI-7
🟡 ISO 27001:2022
A.9.2.1 A.9.2.5 A.13.1.1
📦 Affected Products / CPE 2 entries
linuxfoundation:nats-server
linuxfoundation:nats-server
📊 CVSS Score
6.4
/ 10.0 — Medium
📊 CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Attack VectorN — None / Network
Attack ComplexityL — Low / Local
Privileges RequiredL — Low / Local
User InteractionN — None / Network
ScopeC — Changed
ConfidentialityL — Low / Local
IntegrityL — Low / Local
AvailabilityN — None / Network
📋 Quick Facts
Severity Medium
CVSS Score6.4
CWECWE-290
Exploit No
Patch ✗ No
Published 2026-03-25
Source Feed nvd
Views 4
🇸🇦 Saudi Risk Score
6.0
/ 10.0 — Saudi Risk
Priority: MEDIUM
🏷️ Tags
CWE-290
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