CVE-2026-27960 — AI Deep Analysis Summary

🚨 **Essence**: OpenCTI has a critical **Privilege Escalation** & **Unauthorized Access** flaw. 📉 **Consequences**: Attackers can bypass authentication and impersonate ANY user, including the default admin.…

🛡️ **Root Cause**: **CWE-287** (Improper Authentication). The platform fails to properly verify identity before granting API access. It’s a fundamental flaw in the permission check logic.

📦 **Affected**: **OpenCTI Platform**. Specifically versions **6.6.0** through **6.9.12**. If you are running any version in this range, you are vulnerable!

💀 **Attacker Capabilities**: 🎭 Impersonate **ANY existing user** (even default `admin`). 🔍 Query sensitive API data. 📊 Access all threat intelligence and observable data stored in the platform.

⚡ **Exploitation**: **LOW** threshold! 🚫 No authentication required (PR:N). 🌐 Network accessible (AV:N). 🎯 Low complexity (AC:L). Easy to exploit remotely.

📜 **Public Exploit**: **No** public PoC or wild exploitation code found in the provided data. However, the CVSS score suggests it is highly exploitable if logic is reverse-engineered.

🔍 **Self-Check**: Check your OpenCTI version. If it is between **6.6.0** and **6.9.12**, you are at risk. Look for unauthorized API calls or unexpected admin activity in logs.

✅ **Official Fix**: **YES**. Patched in version **6.9.13**. 🔄 **Action**: Upgrade immediately to 6.9.13 or later to close this security hole.

🛑 **No Patch?**: Set config `APP__ADMIN__EXTERNALLY_MANAGED` to disable the default admin account. This is a **temporary mitigation**, not a fix. Upgrade ASAP!

🔥 **Urgency**: **CRITICAL**. CVSS Score is **9.8** (High). 🚨 Immediate patching required. Do not wait. Protect your threat intel data NOW!