diff --git a/sdk_container/src/third_party/portage-stable/changelog/security/2022-02-23-libxml2.md b/sdk_container/src/third_party/portage-stable/changelog/security/2022-02-23-libxml2.md
new file mode 100644
index 0000000000..ba8d13d960
--- /dev/null
+++ b/sdk_container/src/third_party/portage-stable/changelog/security/2022-02-23-libxml2.md
@@ -0,0 +1 @@
+- libxml2 ([CVE-2022-23308](https://nvd.nist.gov/vuln/detail/CVE-2022-23308))
diff --git a/sdk_container/src/third_party/portage-stable/changelog/updates/2022-02-23-libxml2.md b/sdk_container/src/third_party/portage-stable/changelog/updates/2022-02-23-libxml2.md
new file mode 100644
index 0000000000..6c38a7c3cc
--- /dev/null
+++ b/sdk_container/src/third_party/portage-stable/changelog/updates/2022-02-23-libxml2.md
@@ -0,0 +1 @@
+- libxml2 ([2.9.13](http://www.xmlsoft.org/news.html))