Add private-can-be-overridden bug to buglist

docs/bugs.json

@@ -10,6 +10,14 @@
             "yulOptimizer": true
         }
     },
+    {
+        "name": "privateCanBeOverridden",
+        "summary": "Private methods can be overridden by inheriting contracts.",
+        "description": "While private methods of base contracts are not visible and cannot be called directly from the derived contract, it is still possible to declare a function of the same name and type and thus change the behaviour of the base contract's function.",
+        "introduced": "0.3.0",
+        "fixed": "0.5.17",
+        "severity": "low"
+    },
     {
         "name": "YulOptimizerRedundantAssignmentBreakContinue0.5",
         "summary": "The Yul optimizer can remove essential assignments to variables declared inside for loops when Yul's continue or break statement is used. You are unlikely to be affected if you do not use inline assembly with for loops and continue and break statements.",