Update with more descriptive news

sethmlarson · sethmlarson · commit e65928735aae · 2025-01-14T16:10:29.000-06:00
diff --git a/Misc/NEWS.d/next/Security/2025-01-14-11-19-07.gh-issue-128840.M1doZW.rst b/Misc/NEWS.d/next/Security/2025-01-14-11-19-07.gh-issue-128840.M1doZW.rst
@@ -1 +1,3 @@
-Limit the number of parts split during IPv6 address parsing.
+Limit the number of splitting on colons (``:``) that will occur while parsing
+an IPv6 address. This prevents excessive memory consumption and potential
+denial-of-service when parsing a large IPv6 address.
