diff --git a/common/changes/@rushstack/node-core-library/kwy404-fix-truncate-with-ellipsis_2026-10-01-20-44-35.json b/common/changes/@rushstack/node-core-library/kwy404-fix-truncate-with-ellipsis_2026-10-01-20-44-35.json
new file mode 100644
index 0000000000..e1eda0d130
--- /dev/null
+++ b/common/changes/@rushstack/node-core-library/kwy404-fix-truncate-with-ellipsis_2026-10-01-20-44-35.json
@@ -0,0 +1,11 @@
+{
+  "changes": [
+    {
+      "comment": "Fix an issue where `Text.truncateWithEllipsis()` returned \"...\" when `maximumLength` was less than 3, producing a string longer than `maximumLength`.",
+      "type": "patch",
+      "packageName": "@rushstack/node-core-library"
+    }
+  ],
+  "packageName": "@rushstack/node-core-library",
+  "email": "thekaway404@gmail.com"
+}
\ No newline at end of file
diff --git a/libraries/node-core-library/src/Text.ts b/libraries/node-core-library/src/Text.ts
index 23fbf48388..ba8e1417cc 100644
--- a/libraries/node-core-library/src/Text.ts
+++ b/libraries/node-core-library/src/Text.ts
@@ -209,7 +209,7 @@ export class Text {
       return s;
     }
 
-    if (s.length <= 3) {
+    if (maximumLength < 3) {
       return s.substring(0, maximumLength);
     }
 
diff --git a/libraries/node-core-library/src/test/Text.test.ts b/libraries/node-core-library/src/test/Text.test.ts
index a4567b25f9..909c7a7467 100644
--- a/libraries/node-core-library/src/test/Text.test.ts
+++ b/libraries/node-core-library/src/test/Text.test.ts
@@ -72,6 +72,11 @@ describe(Text.name, () => {
       expect(Text.truncateWithEllipsis('12345', 5)).toEqual('12345');
       expect(Text.truncateWithEllipsis('123456', 5)).toEqual('12...');
     });
+
+    it('Never returns more than maximumLength characters', () => {
+      expect(Text.truncateWithEllipsis('12345', 0)).toEqual('');
+      expect(Text.truncateWithEllipsis('12345', 2)).toEqual('12');
+    });
   });
 
   describe(Text.convertToLf.name, () => {