diff --git a/sdk_container/src/third_party/portage-stable/changelog/security/2021-12-09-libarchive-3.5.2.md b/sdk_container/src/third_party/portage-stable/changelog/security/2021-12-09-libarchive-3.5.2.md
new file mode 100644
index 0000000000..ee0584f582
--- /dev/null
+++ b/sdk_container/src/third_party/portage-stable/changelog/security/2021-12-09-libarchive-3.5.2.md
@@ -0,0 +1,2 @@
+- [libarchive-1565](https://github.com/libarchive/libarchive/issues/1565)
+- [libarchive-1566](https://github.com/libarchive/libarchive/issues/1566)
diff --git a/sdk_container/src/third_party/portage-stable/changelog/updates/2021-12-09-libarchive-3.5.2.md b/sdk_container/src/third_party/portage-stable/changelog/updates/2021-12-09-libarchive-3.5.2.md
new file mode 100644
index 0000000000..9bb2a2c713
--- /dev/null
+++ b/sdk_container/src/third_party/portage-stable/changelog/updates/2021-12-09-libarchive-3.5.2.md
@@ -0,0 +1 @@
+- libarchive [3.5.2](https://github.com/libarchive/libarchive/releases/tag/v3.5.2)