diff --git a/csharp/ql/src/change-notes/2025-06-06-reduce-CWE-134-for-memory-safe-languages.md b/csharp/ql/src/change-notes/2025-06-06-reduce-CWE-134-for-memory-safe-languages.md
new file mode 100644
index 00000000000..60006391ac6
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+++ b/csharp/ql/src/change-notes/2025-06-06-reduce-CWE-134-for-memory-safe-languages.md
@@ -0,0 +1,4 @@
+---
+category: queryMetadata
+---
+* Adjusts the `@security-severity` from 9.3 to 7.3 for `cs/uncontrolled-format-string` to align `CWE-134` severity for memory safe languages to better reflect their impact.
diff --git a/java/ql/src/change-notes/2025-06-06-reduce-CWE-134-for-memory-safe-languages.md b/java/ql/src/change-notes/2025-06-06-reduce-CWE-134-for-memory-safe-languages.md
new file mode 100644
index 00000000000..0aadb06a32b
--- /dev/null
+++ b/java/ql/src/change-notes/2025-06-06-reduce-CWE-134-for-memory-safe-languages.md
@@ -0,0 +1,4 @@
+---
+category: queryMetadata
+---
+* Adjusts the `@security-severity` from 9.3 to 7.3 for `java/tainted-format-string` to align `CWE-134` severity for memory safe languages to better reflect their impact.
diff --git a/swift/ql/src/change-notes/2025-06-06-reduce-CWE-134-for-memory-safe-languages.md b/swift/ql/src/change-notes/2025-06-06-reduce-CWE-134-for-memory-safe-languages.md
new file mode 100644
index 00000000000..799093d0b39
--- /dev/null
+++ b/swift/ql/src/change-notes/2025-06-06-reduce-CWE-134-for-memory-safe-languages.md
@@ -0,0 +1,4 @@
+---
+category: queryMetadata
+---
+* Adjusts the `@security-severity` from 9.3 to 7.3 for `swift/uncontrolled-format-string` to align `CWE-134` severity for memory safe languages to better reflect their impact.