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Global apt Financial Services, Banking HIGH 56m Global vulnerability Technology and Software Development HIGH 3h Global vulnerability Government and Federal Agencies CRITICAL 3h Global supply_chain Software Development and Open-Source Ecosystems HIGH 4h Global vulnerability Enterprise Software/SaaS MEDIUM 4h Global supply_chain Software Development HIGH 5h Global general Insurance/Risk Management HIGH 5h Global data_breach Enterprise Software / Information Technology CRITICAL 6h Global vulnerability Technology/Software CRITICAL 8h Global malware Social Media and Consumer Technology HIGH 8h Global apt Financial Services, Banking HIGH 56m Global vulnerability Technology and Software Development HIGH 3h Global vulnerability Government and Federal Agencies CRITICAL 3h Global supply_chain Software Development and Open-Source Ecosystems HIGH 4h Global vulnerability Enterprise Software/SaaS MEDIUM 4h Global supply_chain Software Development HIGH 5h Global general Insurance/Risk Management HIGH 5h Global data_breach Enterprise Software / Information Technology CRITICAL 6h Global vulnerability Technology/Software CRITICAL 8h Global malware Social Media and Consumer Technology HIGH 8h Global apt Financial Services, Banking HIGH 56m Global vulnerability Technology and Software Development HIGH 3h Global vulnerability Government and Federal Agencies CRITICAL 3h Global supply_chain Software Development and Open-Source Ecosystems HIGH 4h Global vulnerability Enterprise Software/SaaS MEDIUM 4h Global supply_chain Software Development HIGH 5h Global general Insurance/Risk Management HIGH 5h Global data_breach Enterprise Software / Information Technology CRITICAL 6h Global vulnerability Technology/Software CRITICAL 8h Global malware Social Media and Consumer Technology HIGH 8h
Vulnerabilities

CVE-2026-47071

High ⚡ Exploit Available
CWE-400 — Weakness Type
Published: May 25, 2026  ·  Modified: Jun 1, 2026  ·  Source: NVD
CVSS v3
7.5
🔗 NVD Official
📄 Description (English)

Uncontrolled Resource Consumption vulnerability in benoitc hackney allows Flooding. The SOCKS5 transport in src/hackney_socks5.erl correctly applies the caller-supplied timeout to the SOCKS5 negotiation phase, but then upgrades the connection to TLS using the two-argument form ssl:connect/2, which defaults to an infinite timeout. The Timeout value is in scope at the call site but is not forwarded. A hostile SOCKS5 proxy that completes the SOCKS5 handshake normally and then goes silent (or sends a partial TLS ServerHello and stalls) will cause the connecting process to block indefinitely, regardless of the connect_timeout or recv_timeout options supplied by the caller.

This issue affects hackney: from 0.10.0 before 4.0.1.

🤖 AI Executive Summary

CVE-2026-47071 is an uncontrolled resource consumption vulnerability in hackney's SOCKS5 transport that allows a malicious proxy to cause indefinite blocking by not forwarding timeout values during TLS upgrade. This can lead to denial of service attacks against applications using affected versions of hackney.

📄 Description (Arabic)

ثغرة استهلاك الموارد غير المنضبط في وحدة SOCKS5 في hackney تفشل في تطبيق قيم المهلة الزمنية عند ترقية الاتصال إلى TLS. يمكن لوكيل SOCKS5 معادي أن يكمل مصافحة SOCKS5 بشكل طبيعي ثم يتوقف عن الرد أو يرسل جزءاً من ServerHello مما يسبب حجب العملية بشكل غير محدود.

🤖 ملخص تنفيذي (AI)

A resource consumption flaw in hackney's SOCKS5 implementation fails to apply timeout parameters when upgrading to TLS, allowing hostile proxies to block connections indefinitely. Saudi organizations using hackney for secure communications may experience service disruptions from this vulnerability.

🤖 AI Intelligence Analysis Analyzed: May 29, 2026 03:36
🇸🇦 Saudi Arabia Impact Assessment
Saudi Relevance: high
🏢 Affected Saudi Sectors
banking government telecom
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
7.0
/ 10.0
🔧 Remediation Steps (English)
Update hackney to version 4.0.1 or later immediately. Review and audit all applications using hackney versions 0.10.0 through 4.0.0 for potential exposure. Implement network-level controls to restrict SOCKS5 proxy connections to trusted sources only. Monitor for connection hangs and implement application-level timeout mechanisms as a temporary mitigation.
🔧 خطوات المعالجة (العربية)
قم بتحديث hackney إلى الإصدار 4.0.1 أو أحدث فوراً. راجع جميع التطبيقات التي تستخدم إصدارات hackney من 0.10.0 إلى 4.0.0 للتحقق من التعرض المحتمل. طبق عناصر تحكم على مستوى الشبكة لتقييد اتصالات وكيل SOCKS5 بمصادر موثوقة فقط. راقب تعليق الاتصالات وطبق آليات انتظار على مستوى التطبيق كتخفيف مؤقت.
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
A.12.6.1 A.13.1.1
🔵 SAMA CSF
ID.BE-5 PR.DS-6 DE.CM-1
🟡 ISO 27001:2022
A.12.6.1 A.13.1.3
📦 Affected Products / CPE 1 entries
benoitc:hackney
📊 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-400
EPSS0.04%
Exploit ✓ Yes
Patch ✓ Yes
Published 2026-05-25
Source Feed nvd
🇸🇦 Saudi Risk Score
7.0
/ 10.0 — Saudi Risk
Priority: HIGH
🏷️ Tags
exploit-available patch-available CWE-400
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