diff --git a/testing/endtoend/helpers/helpers.go b/testing/endtoend/helpers/helpers.go
index e1ee4b56a..89d9b3b81 100644
--- a/testing/endtoend/helpers/helpers.go
+++ b/testing/endtoend/helpers/helpers.go
@@ -48,7 +48,7 @@ func DeleteAndCreateFile(tmpPath, fileName string) (*os.File, error) {
 			return nil, err
 		}
 	}
-	newFile, err := os.Create(path.Join(tmpPath, fileName))
+	newFile, err := os.Create(filepath.Clean(path.Join(tmpPath, fileName)))
 	if err != nil {
 		return nil, err
 	}
@@ -161,7 +161,7 @@ func WritePprofFiles(testDir string, index int) error {
 	return writeURLRespAtPath(url, filePath)
 }
 
-func writeURLRespAtPath(url, filePath string) error {
+func writeURLRespAtPath(url, fp string) error {
 	resp, err := http.Get(url) // #nosec G107 -- Safe, used internally
 	if err != nil {
 		return err
@@ -176,7 +176,7 @@ func writeURLRespAtPath(url, filePath string) error {
 	if err != nil {
 		return err
 	}
-	file, err := os.Create(filePath)
+	file, err := os.Create(filepath.Clean(fp))
 	if err != nil {
 		return err
 	}
diff --git a/tools/specs-checker/download.go b/tools/specs-checker/download.go
index 19961aa95..f0099ba45 100644
--- a/tools/specs-checker/download.go
+++ b/tools/specs-checker/download.go
@@ -7,6 +7,7 @@ import (
 	"net/http"
 	"os"
 	"path"
+	"path/filepath"
 	"regexp"
 
 	"github.com/urfave/cli/v2"
@@ -39,7 +40,7 @@ func download(cliCtx *cli.Context) error {
 
 func getAndSaveFile(specDocUrl, outFilePath string) error {
 	// Create output file.
-	f, err := os.Create(outFilePath)
+	f, err := os.Create(filepath.Clean(outFilePath))
 	if err != nil {
 		return fmt.Errorf("cannot create output file: %w", err)
 	}
diff --git a/validator/accounts/accounts_backup.go b/validator/accounts/accounts_backup.go
index 9fb0a5866..e642ebacd 100644
--- a/validator/accounts/accounts_backup.go
+++ b/validator/accounts/accounts_backup.go
@@ -212,7 +212,7 @@ func zipKeystoresToOutputDir(keystoresToBackup []*keymanager.Keystore, outputDir
 		return errors.Errorf("Zip file already exists in directory: %s", archivePath)
 	}
 	// We create a new file to store our backup.zip.
-	zipfile, err := os.Create(archivePath)
+	zipfile, err := os.Create(filepath.Clean(archivePath))
 	if err != nil {
 		return errors.Wrapf(err, "could not create zip file with path: %s", archivePath)
 	}