diff --git a/docs/releasenotes/9.3.0.rst b/docs/releasenotes/9.3.0.rst
index e5a68ed9e98..a9acad6f847 100644
--- a/docs/releasenotes/9.3.0.rst
+++ b/docs/releasenotes/9.3.0.rst
@@ -40,6 +40,12 @@ classes: :py:data:`~PIL.ExifTags.Base` and :py:data:`~PIL.ExifTags.GPS`.
 Security
 ========
 
+Initialize libtiff buffer when saving
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+When saving a TIFF image to a file object using libtiff, the buffer was not
+initialized. This behaviour introduced in Pillow 2.0.0, and has now been fixed.
+
 Decode JPEG compressed BLP1 data in original mode
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^