diff --git a/git/refs/symbolic.py b/git/refs/symbolic.py
@@ -161,15 +161,61 @@ def dereference_recursive(cls, repo: "Repo", ref_path: Union[PathLike, None]) ->
                return hexsha
        # END recursive dereferencing

    @classmethod
    def _get_ref_info_helper(
        cls, repo: "Repo", ref_path: Union[PathLike, None]
    ) -> Union[Tuple[str, None], Tuple[None, str]]:
        """Return: (str(sha), str(target_ref_path)) if available, the sha the file at
        rela_path points to, or None. target_ref_path is the reference we
        point to, or None"""
-        if ".." in str(ref_path):
-            raise ValueError(f"Invalid reference '{ref_path}'")
        tokens: Union[None, List[str], Tuple[str, str]] = None
        repodir = _git_dir(repo, ref_path)
        try:

diff --git a/test/test_refs.py b/test/test_refs.py
@@ -631,3 +631,39 @@ def test_refs_outside_repo(self):
            ref_file.flush()
            ref_file_name = Path(ref_file.name).name
            self.assertRaises(BadName, self.rorepo.commit, f"../../{ref_file_name}")
Original file line number	Diff line number	Diff line change
Expand Up		@@ -631,3 +631,39 @@ def test_refs_outside_repo(self):
		ref_file.flush()
		ref_file_name = Path(ref_file.name).name
		self.assertRaises(BadName, self.rorepo.commit, f"../../{ref_file_name}")