1 files changed, 3 insertions, 1 deletions
diff --git a/ruby.c b/ruby.c
index 7e64d081a9..d0f66dcd6d 100644
--- a/ruby.c
+++ b/ruby.c
@@ -2186,7 +2186,9 @@ external_str_new_cstr(const char *p)
 {
 #if UTF8_PATH
     VALUE str = rb_utf8_str_new_cstr(p);
-    return str_conv_enc(str, NULL, rb_default_external_encoding());
+    str = str_conv_enc(str, NULL, rb_default_external_encoding());
+    OBJ_TAINT_RAW(str);
+    return str;
 #else
     return rb_external_str_new_cstr(p);
 #endif