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Vulnerabilities

CVE-2026-4897

Medium
A flaw was found in polkit. A local user can exploit this by providing a specially crafted, excessively long input to the `polkit-agent-helper-1` setuid binary via standard input (stdin). This unbound
CWE-770 — Weakness Type
Published: Mar 26, 2026  ·  Modified: Mar 29, 2026  ·  Source: NVD
CVSS v3
5.5
🔗 NVD Official
📄 Description (English)

A flaw was found in polkit. A local user can exploit this by providing a specially crafted, excessively long input to the `polkit-agent-helper-1` setuid binary via standard input (stdin). This unbounded input can lead to an out-of-memory (OOM) condition, resulting in a Denial of Service (DoS) for the system.

🤖 AI Executive Summary

A denial of service vulnerability in polkit's polkit-agent-helper-1 setuid binary allows local users to trigger out-of-memory conditions through excessively long stdin input. This flaw can crash system services and impact availability on affected Linux systems.

📄 Description (Arabic)

تم اكتشاف ثغرة في polkit تسمح لمستخدم محلي باستغلالها من خلال توفير مدخل طويل بشكل مفرط إلى الملف الثنائي setuid polkit-agent-helper-1 عبر الإدخال القياسي. يمكن لهذا المدخل غير المحدود أن يؤدي إلى حالة استنزاف الذاكرة مما يسبب حجب الخدمة على النظام.

🤖 ملخص تنفيذي (AI)

A denial of service vulnerability in polkit's polkit-agent-helper-1 setuid binary allows local users to trigger out-of-memory conditions through excessively long stdin input. This flaw can crash system services and impact availability on affected Linux systems.

🤖 AI Intelligence Analysis Analyzed: May 25, 2026 10:54
🇸🇦 Saudi Arabia Impact Assessment
Saudi Relevance: medium
🏢 Affected Saudi Sectors
government telecom energy
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
5.0
/ 10.0
🔧 Remediation Steps (English)
Update polkit to the latest patched version that implements input validation and bounds checking for stdin processing in polkit-agent-helper-1. Apply security patches from your Linux distribution vendor immediately.
🔧 خطوات المعالجة (العربية)
قم بتحديث polkit إلى أحدث إصدار مصحح يتضمن التحقق من صحة المدخلات والتحقق من حدود معالجة stdin في polkit-agent-helper-1. طبق تصحيحات الأمان من موزع توزيعة Linux الخاص بك فوراً.
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
AC-3 SI-4
🔵 SAMA CSF
CC.6.1 CC.6.2
🟡 ISO 27001:2022
A.12.6.1 A.14.2.1
📊 CVSS Score
5.5
/ 10.0 — Medium
📊 CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack VectorL — Low / Local
Attack ComplexityL — Low / Local
Privileges RequiredL — Low / Local
User InteractionN — None / Network
ScopeU — Unchanged
ConfidentialityN — None / Network
IntegrityN — None / Network
AvailabilityH — High
📋 Quick Facts
Severity Medium
CVSS Score5.5
CWECWE-770
EPSS0.01%
Exploit No
Patch ✗ No
Published 2026-03-26
Source Feed nvd
Views 5
🇸🇦 Saudi Risk Score
5.0
/ 10.0 — Saudi Risk
Priority: MEDIUM
🏷️ Tags
CWE-770
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