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# 🚨 CVE-2026-41651 — Pack2TheRoot
<img width="1200" height="630" alt="Pack2TheRoot" src="https://github.com/user-attachments/assets/9657dff4-a4da-4193-a588-41f6ffabaa75" />
### Privilege Escalation Vulnerability in PackageKit (TOCTOU Race Condition)
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## 📌 Overview
**CVE-2026-41651** is a local privilege escalation vulnerability affecting the **PackageKit** system service used in various Linux distributions.
The vulnerability is caused by a **Time-of-Check to Time-of-Use (TOCTOU) race condition**, which can be abused to manipulate package installation workflows and escalate privileges to root.
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## ⚠️ Impact
If successfully exploited, this vulnerability may allow a local unprivileged user to:
<img width="1920" height="791" alt="CVE-2026-41651" src="https://github.com/user-attachments/assets/1a698457-06df-46ce-9452-6846ac22b0f8" />
- Gain **root-level privileges**
- Execute **arbitrary package installation scripts (RPM scriptlets)**
- Modify system-level configurations
- Compromise system integrity and confidentiality
> 🧠 Note: This vulnerability requires **local access** and cannot be exploited remotely.
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## 🧩 Affected Versions
- PackageKit **1.0.2 → 1.3.4**
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## 🔧 Fixed Version
- PackageKit **1.3.5**
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## 🧬 Technical Description
The issue originates from an unsafe handling of transactional state within PackageKit. A race condition occurs between:
1. **Validation phase (check permissions / flags)**
2. **Execution phase (perform privileged operation)**
During this window, an attacker may manipulate system state, leading to unintended privileged execution.
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## 🛡️ Mitigation
To reduce risk:
- Upgrade PackageKit to **version 1.3.5 or later**
- Apply security updates from your Linux distribution vendor
- Restrict local user access on multi-user systems
- Monitor package management activity logs
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## 🧾 References
- Vendor Security Advisory (PackageKit)
- Linux Distribution Security Updates
- Common Vulnerabilities and Exposures: CVE-2026-41651
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## 📊 Risk Summary
| Attribute | Value |
|------------------|------------------------------|
| Attack Vector | Local |
| Complexity | Medium |
| Privileges Req. | Low |
| Impact | High (System Compromise) |
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## ⚡ Disclaimer
This repository is for **educational and defensive security purposes only**.
No exploit code or malicious instructions are included.
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## 🧠 Stay Secure
Always keep systems updated and review privilege escalation risks in system services regularly.