diff --git a/backend/app/sandbox/main.py b/backend/app/sandbox/main.py
index ff4b05c..b58623e 100644
--- a/backend/app/sandbox/main.py
+++ b/backend/app/sandbox/main.py
@@ -2,8 +2,11 @@ import subprocess
 import json
 import time
 from fastapi import FastAPI
+import logging
 
 app = FastAPI()
+logger = logging.getLogger(__name__)
+SEMGREP_TIMEOUT = 300.0
 
 @app.post("/scan/{repo_name}")
 async def scan_repository(repo_name: str):
@@ -11,13 +14,43 @@ async def scan_repository(repo_name: str):
     issues_list = []
     start_time = time.time()
     
-    result = subprocess.run(
-        ["semgrep", "scan", "--config=p/r2c-security-audit", "--json", "--quiet", repo_path],
-        capture_output=True,
-        text=True
-    )
-    
-    duration = round(time.time() - start_time, 2)
+    try:
+        secure_command = f"ulimit -f 10240 && semgrep scan --config=p/r2c-security-audit --json --quiet {repo_path}"
+        
+        result = subprocess.run(
+            secure_command,
+            shell=True,
+            capture_output=True,
+            text=True,
+            timeout=SEMGREP_TIMEOUT
+        )
+        
+        duration = round(time.time() - start_time, 2)
+        exit_code = result.returncode
+        stderr_output = result.stderr
+        timeout_triggered = False
+        is_executable = True
+
+    except subprocess.TimeoutExpired as te:
+        logger.error(f"[Sandbox] Semgrep a dépassé le timeout sur {repo_name}")
+        duration = round(time.time() - start_time, 2)
+        exit_code = -1
+        stderr_output = f"L'analyse statique a été coupée : Timeout de {SEMGREP_TIMEOUT}s dépassé."
+        timeout_triggered = True
+        is_executable = False
+        return {
+            "results": {
+                "is_executable": is_executable,
+                "runtime": {
+                    "exit_code": exit_code,
+                    "stdout": "",
+                    "stderr": stderr_output,
+                    "duration_seconds": duration,
+                    "timeout_triggered": timeout_triggered
+                },
+                "issues": []
+            }
+        }
     
     try:
         if result.stdout.strip():
@@ -41,11 +74,11 @@ async def scan_repository(repo_name: str):
         "results": {
             "is_executable": is_executable,
             "runtime": {
-                "exit_code": 0,  # <-- ON FORCE À 0 ICI : Tout s'est bien passé pour le scanner
+                "exit_code": exit_code,
                 "stdout": "Scan statique universel effectué avec succès.",
                 "stderr": stderr_output,
                 "duration_seconds": duration,
-                "timeout_triggered": False
+                "timeout_triggered": timeout_triggered
             },
             "issues": issues_list
         }