CVE-2026-6022 — 神龙十问 AI 深度分析摘要

- **CVE-2026-6022**: Resource mgmt flaw in **Progress Telerik UI for AJAX** 🚨 - Affects **RadAsyncUpload** component. - Missing size enforcement during chunk reassembly. - ⚠️ Upload > max config size possible.…

- **Root Cause**: Missing cumulative size check in upload process. - Related to **CWE-400**: Uncontrolled Resource Consumption. - Flaw: No enforced limit while merging chunks 🧩.

- **Affected**: Progress Telerik UI for AJAX < **2026.1.421**. - Component: **RadAsyncUpload**. - 🎯 Web apps using vulnerable version.

- **Hackers**: No need for auth 🛑. - Can force large uploads → fill disk. - 📉 Impact: **Availability** only (C:N / I:N / A:H). - No direct data access or privilege gain.

- **Exploitation Threshold**: VERY LOW ✅. - 🔓 **No authentication** needed (PR:N). - 🌐 Network accessible (AV:N). - Simple config: just trigger upload.

- **Public Exploit**: ❌ None found. - **PoC**: Not available (`"pocs": []`). - 🕵️ No wild exploitation confirmed yet.

- **Self-Check**: - Identify if app uses **RadAsyncUpload**. - Check Telerik UI version < 2026.1.421 🔍. - Review upload size limits & chunk handling logic. - Monitor disk usage spikes after uploads 💡.

- **Official Fix**: ✅ Yes. - Patched in version **2026.1.421**.…

- **If No Patch**: - Enforce strict file size limits at server side 🚨. - Disable or replace **RadAsyncUpload** if unused. - Add custom checks during chunk reassembly 💡.…

- **Urgency**: 🔥 HIGH PRIORITY. - Easy to exploit (no auth). - Can cause full disk → service outage. - 📢 Patch ASAP or apply mitigations!