update CHANGELOG.md

Author: herin049

CHANGELOG.md

@@ -50,6 +50,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   ([#3904](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/3904))
 - build: bump ruff to 0.14.1
   ([#3842](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/3842))
+- `opentelemetry-instrumentation-pymongo`: Fix invalid mongodb collection attribute type
+  ([#3942](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/3942))
 
 ## Version 1.38.0/0.59b0 (2025-10-16)
 

instrumentation/opentelemetry-instrumentation-pymongo/src/opentelemetry/instrumentation/pymongo/__init__.py

@@ -228,13 +228,7 @@ def _get_statement_by_command_name(
 
 def _get_command_collection_name(event: CommandEvent) -> str | None:
     collection_name = event.command.get(event.command_name)
-    if (
-        not collection_name
-        or not isinstance(collection_name, str)
-        or ".." in collection_name
-        or collection_name[0] == "."
-        or collection_name[-1] == "."
-    ):
+    if not collection_name or not isinstance(collection_name, str):
         return None
     return collection_name
 

instrumentation/opentelemetry-instrumentation-pymongo/tests/test_pymongo.py

@@ -288,10 +288,7 @@ def test_collection_name_attribute(self):
                 "test_collection",
             ),
             ({"command_name": "find"}, None),
-            ({"command_name": "find", "find": b'invalid'}, None),
-            ({"command_name": "find", "find": ".invalid"}, None),
-            ({"command_name": "find", "find": "invalid."}, None),
-            ({"command_name": "find", "find": "invalid..invalid"}, None),
+            ({"command_name": "find", "find": b"invalid"}, None),
         ]
         for command_attrs, expected in scenarios:
             with self.subTest(command_attrs=command_attrs, expected=expected):