diff --git a/sdk_container/src/third_party/portage-stable/changelog/security/2022-09-15-zlib.md b/sdk_container/src/third_party/portage-stable/changelog/security/2022-09-15-zlib.md
new file mode 100644
index 0000000000..43b789f343
--- /dev/null
+++ b/sdk_container/src/third_party/portage-stable/changelog/security/2022-09-15-zlib.md
@@ -0,0 +1 @@
+- zlib ([CVE-2022-37434](https://nvd.nist.gov/vuln/detail/CVE-2022-37434))