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Vulnerabilities

CVE-2026-3854

High
An improper neutralization of special elements vulnerability was identified in GitHub Enterprise Server that allowed an attacker with push access to a repository to achieve remote code execution on th
CWE-77 — Weakness Type
Published: Mar 10, 2026  ·  Modified: Mar 17, 2026  ·  Source: NVD
CVSS v3
8.8
🔗 NVD Official
📄 Description (English)

An improper neutralization of special elements vulnerability was identified in GitHub Enterprise Server that allowed an attacker with push access to a repository to achieve remote code execution on the instance. During a git push operation, user-supplied push option values were not properly sanitized before being included in internal service headers. Because the internal header format used a delimiter character that could also appear in user input, an attacker could inject additional metadata fields through crafted push option values. This vulnerability was reported via the GitHub Bug Bounty program and has been fixed in GitHub Enterprise Server versions 3.14.24, 3.15.19, 3.16.15, 3.17.12, 3.18.6 and 3.19.3.

🤖 AI Executive Summary

A critical command injection vulnerability in GitHub Enterprise Server (CVE-2026-3854) allows authenticated users with repository push access to execute arbitrary code on the server through maliciously crafted git push options. The vulnerability stems from improper sanitization of user-supplied push option values before inclusion in internal service headers. With a CVSS score of 8.8 and no public exploit currently available, immediate patching is essential for all Saudi organizations running affected GES versions.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: Apr 23, 2026 09:42
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability poses significant risk to Saudi government agencies (NCA, NCSC), financial institutions (SAMA-regulated banks, fintech companies), energy sector (ARAMCO, Saudi Aramco subsidiaries), telecommunications (STC, Mobily), and healthcare organizations that utilize GitHub Enterprise Server for source code management and CI/CD pipelines. The ability to achieve RCE through repository push access could lead to supply chain attacks, unauthorized code deployment, data exfiltration, and infrastructure compromise. Organizations in critical infrastructure sectors face heightened risk due to regulatory compliance requirements and operational continuity concerns.
🏢 Affected Saudi Sectors
Government and Public Administration Banking and Financial Services Energy and Utilities Telecommunications Healthcare Defense and Security Technology and Software Development
⚖️ Saudi Risk Score (AI)
8.5
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all GitHub Enterprise Server instances in your environment and document their current versions
2. Restrict push access to trusted developers only; implement principle of least privilege for repository permissions
3. Enable audit logging for all git push operations and monitor for suspicious push option patterns
4. Review recent push activity logs for any anomalous push options or unexpected code changes

PATCHING GUIDANCE:
1. Upgrade to patched versions immediately: 3.14.24, 3.15.19, 3.16.15, 3.17.12, 3.18.6, or 3.19.3
2. Plan maintenance windows with minimal disruption; coordinate with development teams
3. Test patches in staging environment before production deployment
4. Maintain backups before applying patches

COMPENSATING CONTROLS (if patching delayed):
1. Implement network-level restrictions limiting push operations to known IP ranges
2. Deploy Web Application Firewall (WAF) rules to detect and block suspicious push option patterns
3. Enforce multi-factor authentication for all repository access
4. Implement code review requirements for all pushes with automated scanning

DETECTION RULES:
1. Monitor for git push operations containing special characters in push options (particularly delimiter characters)
2. Alert on push operations from unusual accounts or IP addresses
3. Track failed authentication attempts followed by successful pushes
4. Monitor for unexpected process execution or system calls originating from git service processes
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. حدد جميع مثيلات خادم GitHub Enterprise Server في بيئتك وقم بتوثيق إصداراتها الحالية
2. قيد وصول الدفع للمطورين الموثوقين فقط؛ طبق مبدأ الامتياز الأقل لأذونات المستودع
3. فعّل تسجيل التدقيق لجميع عمليات دفع git وراقب الأنماط المريبة في خيارات الدفع
4. راجع سجلات نشاط الدفع الأخيرة للبحث عن أي خيارات دفع شاذة أو تغييرات كود غير متوقعة

إرشادات التصحيح:
1. قم بالترقية إلى الإصدارات المصححة فوراً: 3.14.24 أو 3.15.19 أو 3.16.15 أو 3.17.12 أو 3.18.6 أو 3.19.3
2. خطط نوافذ الصيانة بأقل قدر من الانقطاع؛ تنسيق مع فرق التطوير
3. اختبر التصحيحات في بيئة التجريب قبل نشر الإنتاج
4. احتفظ بنسخ احتياطية قبل تطبيق التصحيحات

الضوابط البديلة (إذا تأخر التصحيح):
1. طبق قيوداً على مستوى الشبكة تحد من عمليات الدفع إلى نطاقات IP المعروفة
2. نشر قواعد جدار حماية تطبيقات الويب (WAF) للكشف عن أنماط خيارات الدفع المريبة وحجبها
3. فرض المصادقة متعددة العوامل لجميع عمليات الوصول إلى المستودع
4. طبق متطلبات مراجعة الكود لجميع عمليات الدفع مع المسح الآلي

قواعد الكشف:
1. راقب عمليات دفع git التي تحتوي على أحرف خاصة في خيارات الدفع (خاصة أحرف الفاصل)
2. أصدر تنبيهات لعمليات الدفع من حسابات أو عناوين IP غير عادية
3. تتبع محاولات المصادقة الفاشلة متبوعة بعمليات دفع ناجحة
4. راقب تنفيذ العمليات غير المتوقعة أو استدعاءات النظام الناشئة من عمليات خدمة git
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.12.6.1 - Management of technical vulnerabilities ECC 2024 A.14.2.1 - Secure development policy ECC 2024 A.12.3.1 - Configuration management ECC 2024 A.12.2.1 - Change management
🔵 SAMA CSF
SAMA CSF ID.BE-3.2 - Organizational resilience SAMA CSF PR.DS-6 - Data security and integrity SAMA CSF DE.CM-1 - Detection and analysis SAMA CSF RS.RP-1 - Response planning
🟡 ISO 27001:2022
ISO 27001:2022 A.12.6.1 - Management of technical vulnerabilities ISO 27001:2022 A.14.2.1 - Secure development policy ISO 27001:2022 A.12.3.1 - Configuration management ISO 27001:2022 A.8.1.1 - Inventory of assets
🟣 PCI DSS v4.0.1
PCI DSS 6.2 - Security patches and updates PCI DSS 6.3.1 - Vulnerability scanning PCI DSS 11.2 - Vulnerability scanning
📦 Affected Products / CPE 6 entries
github:enterprise_server
github:enterprise_server
github:enterprise_server
github:enterprise_server
github:enterprise_server
github:enterprise_server
📊 CVSS Score
8.8
/ 10.0 — High
📊 CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack VectorN — None / Network
Attack ComplexityL — Low / Local
Privileges RequiredL — Low / Local
User InteractionN — None / Network
ScopeU — Unchanged
ConfidentialityH — High
IntegrityH — High
AvailabilityH — High
📋 Quick Facts
Severity High
CVSS Score8.8
CWECWE-77
Exploit No
Patch ✓ Yes
Published 2026-03-10
Source Feed nvd
Views 4
🇸🇦 Saudi Risk Score
8.5
/ 10.0 — Saudi Risk
Priority: CRITICAL
🏷️ Tags
CWE-77
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