Update CHANGELOG.md for 12.5.2

[ci skip]

CHANGELOG.md

@@ -2,6 +2,13 @@
 documentation](doc/development/changelog.md) for instructions on adding your own
 entry.
+## 12.5.2
+
+### Security (1 change)
+
+- Fix 500 error caused by invalid byte sequences in links.
+
+
 ## 12.5.1
 ### Security (11 changes)

changelogs/unreleased/security-dos-issue-and-commit-comments-master.yml

----
-title: Fix 500 error caused by invalid byte sequences in links
-merge_request:
-author:
-type: security