diff --git a/sdk_container/src/third_party/portage-stable/changelog/security/2021-11-25-CVE-2020-13844.md b/sdk_container/src/third_party/portage-stable/changelog/security/2021-11-25-CVE-2020-13844.md
new file mode 100644
index 0000000000..9cbd4874e5
--- /dev/null
+++ b/sdk_container/src/third_party/portage-stable/changelog/security/2021-11-25-CVE-2020-13844.md
@@ -0,0 +1,3 @@
+## Security
+
+- [CVE-2020-13844](https://nvd.nist.gov/vuln/detail/CVE-2020-13844)
diff --git a/sdk_container/src/third_party/portage-stable/changelog/updates/2021-11-25-gcc-9.4.0.md b/sdk_container/src/third_party/portage-stable/changelog/updates/2021-11-25-gcc-9.4.0.md
new file mode 100644
index 0000000000..f76d5679d5
--- /dev/null
+++ b/sdk_container/src/third_party/portage-stable/changelog/updates/2021-11-25-gcc-9.4.0.md
@@ -0,0 +1,3 @@
+## Updates
+
+- GCC [9.4.0](https://lists.gnu.org/archive/html/info-gnu/2021-06/msg00000.html)