diff --git a/.changeset/cli-common-runcheck-stdio-ignore.md b/.changeset/cli-common-runcheck-stdio-ignore.md
new file mode 100644
index 0000000000..1d2986eaf0
--- /dev/null
+++ b/.changeset/cli-common-runcheck-stdio-ignore.md
@@ -0,0 +1,5 @@
+---
+'@backstage/cli-common': patch
+---
+
+Fixed `runCheck` to ignore stdio of the spawned process, preventing unwanted output from leaking to the terminal.
diff --git a/packages/cli-common/src/run.ts b/packages/cli-common/src/run.ts
index 23e71460e4..0e95bd517b 100644
--- a/packages/cli-common/src/run.ts
+++ b/packages/cli-common/src/run.ts
@@ -211,7 +211,7 @@ export async function runOutput(
  */
 export async function runCheck(args: string[]): Promise<boolean> {
   try {
-    await run(args).waitForExit();
+    await run(args, { stdio: 'ignore' }).waitForExit();
     return true;
   } catch {
     return false;