Add missing preamble to changelog for v14.0.2

Author: MasterKale

CHANGELOG.md

@@ -2,6 +2,11 @@
 
 ## v14.0.2
 
+This update fixes a CVSS v3 Moderate (5.4) security vulnerability identified in
+@simplewebauthn/server. See the security advisory linked below for more information.
+
+**Changes:**
+
 - **[server]** Revamped certificate revocation logic to only cryptographically verify and process
   CRLs from certificates that chained back to an RP-chosen trust anchor
   ([GHSA-2g3p-m8c9-hhwh](https://github.com/MasterKale/SimpleWebAuthn/security/advisories/GHSA-2g3p-m8c9-hhwh))