diff --git a/crates/dync/RUSTSEC-0000-0000.toml b/crates/dync/RUSTSEC-0000-0000.toml
new file mode 100644
index 0000000..d40380a
--- /dev/null
+++ b/crates/dync/RUSTSEC-0000-0000.toml
@@ -0,0 +1,14 @@
+[advisory]
+id = "RUSTSEC-0000-0000"
+package = "dync"
+date = "2020-09-27"
+informational = "unsound"
+title = "VecCopy allows misaligned access to elements"
+url = "https://github.com/elrnv/dync/issues/4"
+description = """
+`VecCopy::data` is created as a Vec of u8 but can be used to store and retrieve
+elements of different types leading to misaligned access.
+"""
+
+[versions]
+patched = []