diff --git a/swh/storage/cassandra/storage.py b/swh/storage/cassandra/storage.py
--- a/swh/storage/cassandra/storage.py
+++ b/swh/storage/cassandra/storage.py
@@ -197,22 +197,23 @@
 
         next_page_token: Optional[str] = None
 
-        rows = self._cql_runner.content_get_token_range(range_start, range_end, limit)
+        rows = self._cql_runner.content_get_token_range(
+            range_start, range_end, limit + 1
+        )
         contents = []
         last_id: Optional[int] = None
-        for row in rows:
+        for counter, row in enumerate(rows):
             if row.status == "absent":
                 continue
             row_d = row._asdict()
             last_id = row_d.pop("tok")
+            if counter >= limit:
+                next_page_token = str(last_id)
+                break
             contents.append(Content(**row_d))
 
-        if len(contents) == limit:
-            assert last_id is not None
-            next_page_token = str(last_id + 1)
-
         assert len(contents) <= limit
-        return PagedResult(results=contents, next_page_token=next_page_token,)
+        return PagedResult(results=contents, next_page_token=next_page_token)
 
     def content_get_metadata(self, contents: List[bytes]) -> Dict[bytes, List[Dict]]:
         result: Dict[bytes, List[Dict]] = {sha1: [] for sha1 in contents}
diff --git a/swh/storage/tests/test_cassandra.py b/swh/storage/tests/test_cassandra.py
--- a/swh/storage/tests/test_cassandra.py
+++ b/swh/storage/tests/test_cassandra.py
@@ -11,9 +11,11 @@
 import time
 
 from collections import namedtuple
+from typing import Dict
 
 import pytest
 
+from swh.core.api.classes import stream_results
 from swh.storage import get_storage
 from swh.storage.cassandra import create_keyspace
 from swh.storage.cassandra.schema import TABLES, HASH_ALGORITHMS
@@ -322,6 +324,57 @@
         # but cont2 should be filtered out
         assert actual_result == [expected_content]
 
+    def test_content_get_partition_murmur3_collision(
+        self, swh_storage, mocker, sample_data
+    ):
+        """The Murmur3 token is used as link from index tables to the main table; and
+        non-matching contents with colliding murmur3-hash are filtered-out when reading
+        the main table.
+
+        This test checks the content_get_partition endpoints return all contents, even
+        the collisions.
+
+        """
+        called = 0
+
+        toks: Dict[int, Dict] = {}
+        for tok, content in enumerate(sample_data.contents):
+            cont = attr.evolve(content, data=None)
+            row_d = {**cont.to_dict(), "tok": tok}
+            toks[tok] = row_d
+
+        # For all tokens, always return cont
+        keys = set(["tok"] + list(content.to_dict().keys())).difference(set(["data"]))
+        Row = namedtuple("Row", keys)
+
+        def mock_content_get_token_range(range_start, range_end, limit):
+            nonlocal called
+            called += 1
+
+            for tok in list(toks.keys()) * 3:  # yield multiple times the same tok
+                row_d = toks[tok]
+                yield Row(**row_d)
+
+        mocker.patch.object(
+            swh_storage._cql_runner,
+            "content_get_token_range",
+            mock_content_get_token_range,
+        )
+
+        actual_results = list(
+            stream_results(
+                swh_storage.content_get_partition, partition_id=0, nb_partitions=1
+            )
+        )
+
+        assert called > 0
+
+        # everything is listed, even collisions
+        assert len(actual_results) == 3 * len(sample_data.contents)
+        # as we duplicated the returned results, dropping duplicate should yield
+        # the original length
+        assert len(set(actual_results)) == len(sample_data.contents)
+
     @pytest.mark.skip("content_update is not yet implemented for Cassandra")
     def test_content_update(self):
         pass