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Global vulnerability Artificial Intelligence and Technology HIGH 21m Global general Technology and Artificial Intelligence MEDIUM 3h Global general Technology and Artificial Intelligence HIGH 4h Global vulnerability Higher Education CRITICAL 13h Global data_breach Government HIGH 14h Global supply_chain Software Development and Open Source Communities CRITICAL 14h Global malware Software Development CRITICAL 14h Global phishing Multiple Sectors HIGH 15h Global vulnerability Web Applications CRITICAL 16h Global apt Critical Infrastructure CRITICAL 16h Global vulnerability Artificial Intelligence and Technology HIGH 21m Global general Technology and Artificial Intelligence MEDIUM 3h Global general Technology and Artificial Intelligence HIGH 4h Global vulnerability Higher Education CRITICAL 13h Global data_breach Government HIGH 14h Global supply_chain Software Development and Open Source Communities CRITICAL 14h Global malware Software Development CRITICAL 14h Global phishing Multiple Sectors HIGH 15h Global vulnerability Web Applications CRITICAL 16h Global apt Critical Infrastructure CRITICAL 16h Global vulnerability Artificial Intelligence and Technology HIGH 21m Global general Technology and Artificial Intelligence MEDIUM 3h Global general Technology and Artificial Intelligence HIGH 4h Global vulnerability Higher Education CRITICAL 13h Global data_breach Government HIGH 14h Global supply_chain Software Development and Open Source Communities CRITICAL 14h Global malware Software Development CRITICAL 14h Global phishing Multiple Sectors HIGH 15h Global vulnerability Web Applications CRITICAL 16h Global apt Critical Infrastructure CRITICAL 16h
Vulnerabilities

CVE-2026-40036

High
CWE-409 — Weakness Type
Published: Apr 8, 2026  ·  Modified: Apr 15, 2026  ·  Source: NVD
CVSS v3
7.5
🔗 NVD Official
📄 Description (English)

Unfurl before 2026.04 contains an unbounded zlib decompression vulnerability in parse_compressed.py that allows remote attackers to cause denial of service. Attackers can submit highly compressed payloads via URL parameters to the /json/visjs endpoint that expand to gigabytes, exhausting server memory and crashing the service.

🤖 AI Executive Summary

Unfurl before version 2026.04 contains an unbounded zlib decompression vulnerability in parse_compressed.py that allows remote attackers to cause denial of service through malicious compressed payloads. Attackers can submit highly compressed data via URL parameters to the /json/visjs endpoint that expand to gigabytes, exhausting server memory and crashing the service.

📄 Description (Arabic)

تحتوي نسخ Unfurl السابقة للإصدار 2026.04 على ثغرة في معالج parse_compressed.py تسمح بفك ضغط zlib غير محدود. يمكن للمهاجمين استغلال هذه الثغرة بإرسال حمولات مضغوطة بدرجة عالية عبر معاملات URL إلى نقطة النهاية /json/visjs. هذا يؤدي إلى استنزاف موارد الذاكرة وتعطل الخدمة.

🤖 ملخص تنفيذي (AI)

إصدارات Unfurl السابقة للإصدار 2026.04 تحتوي على ثغرة في فك ضغط zlib غير محدودة تسمح للمهاجمين بإحداث رفض الخدمة. يمكن للمهاجمين إرسال بيانات مضغوطة عالية عبر معاملات URL إلى نقطة النهاية /json/visjs مما يؤدي إلى استنزاف ذاكرة الخادم وتعطله.

🤖 AI Intelligence Analysis Analyzed: May 2, 2026 23:16
🇸🇦 Saudi Arabia Impact Assessment
Saudi Relevance: high
🏢 Affected Saudi Sectors
government telecom banking energy
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
7.0
/ 10.0
🔧 Remediation Steps (English)
Upgrade Unfurl to version 2026.04 or later immediately. Implement input validation and size limits on compressed payloads before decompression. Deploy rate limiting on the /json/visjs endpoint. Monitor server memory usage and set decompression size quotas. Consider disabling URL-based compression features if not required.
🔧 خطوات المعالجة (العربية)
قم بترقية Unfurl إلى الإصدار 2026.04 أو أحدث فوراً. طبق التحقق من صحة المدخلات وحدود الحجم على الحمولات المضغوطة قبل فك الضغط. نشر تحديد معدل على نقطة النهاية /json/visjs. راقب استخدام ذاكرة الخادم وحدد حصص حجم فك الضغط. فكر في تعطيل ميزات الضغط القائمة على URL إذا لم تكن مطلوبة.
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
5.1 5.2
🔵 SAMA CSF
CC-6.1 CC-6.2
🟡 ISO 27001:2022
A.12.1.1 A.12.1.2 A.12.1.4
📊 CVSS Score
7.5
/ 10.0 — High
📊 CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack VectorN — None / Network
Attack ComplexityL — Low / Local
Privileges RequiredN — None / Network
User InteractionN — None / Network
ScopeU — Unchanged
ConfidentialityN — None / Network
IntegrityN — None / Network
AvailabilityH — High
📋 Quick Facts
Severity High
CVSS Score7.5
CWECWE-409
EPSS0.14%
Exploit No
Patch ✗ No
Published 2026-04-08
Source Feed nvd
Views 4
🇸🇦 Saudi Risk Score
7.0
/ 10.0 — Saudi Risk
Priority: HIGH
🏷️ Tags
CWE-409
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