CVE-2026-21854 — AI Deep Analysis Summary

🚨 **Essence**: A critical authentication bypass in **Tarkov Data Manager**. <br>⚠️ **Consequences**: Unauthenticated users can bypass login and gain **full admin access**.…

🛡️ **Root Cause**: **CWE-287** (Improper Authentication). <br>🔍 **Flaw**: The login endpoint fails to properly verify credentials, allowing attackers to skip the authentication step entirely.

📦 **Affected**: **Tarkov Data Manager** by **the-hideout**. <br>📅 **Version**: All versions released **before January 2, 2025**. If you are running an older build, you are vulnerable.

💀 **Attacker Capabilities**: <br>1️⃣ Gain **Administrator Privileges** without a password. <br>2️⃣ Access sensitive **Database Data**. <br>3️⃣ Modify or delete critical records.…

📉 **Exploitation Threshold**: **LOW**. <br>✅ **Auth**: None required (Bypassed). <br>✅ **Config**: Network accessible (AV:N). <br>✅ **UI**: No interaction needed (UI:N).…

🚫 **Public Exploit**: **No**. <br>📝 **PoC**: The `pocs` field is empty. <br>🔗 **References**: GitHub commit and GHSA advisory exist, but no public code exploit is listed yet.

🔍 **Self-Check**: <br>1️⃣ Check your **Tarkov Data Manager version**. <br>2️⃣ Verify if it was installed/updated **before Jan 2, 2025**. <br>3️⃣ Scan for the specific login endpoint behavior if you have internal access.

✅ **Fixed**: **Yes**. <br>🔗 **Patch**: See GitHub commit `f188f0abf766cefe3f1b7b4fc6fe9dad3736174a`. <br>📢 **Advisory**: GHSA-r8w6-9xwg-6h73 confirms the fix.

🛡️ **No Patch Workaround**: <br>1️⃣ **Isolate**: Restrict network access to the tool (Firewall). <br>2️⃣ **Update**: Upgrade to the latest version immediately. <br>3️⃣ **Monitor**: Watch for unauthorized admin actions.

🔥 **Urgency**: **CRITICAL**. <br>📊 **CVSS**: 9.8 (High). <br>⚡ **Priority**: **Immediate Action Required**. The lack of authentication makes this an easy target for automated attacks. Patch now!