diff --git a/security/cve_2024_49761_spec.rb b/security/cve_2024_49761_spec.rb
new file mode 100644
index 000000000..54ede3903
--- /dev/null
+++ b/security/cve_2024_49761_spec.rb
@@ -0,0 +1,9 @@
+require_relative '../spec_helper'
+
+ruby_version_is "3.2" do
+  describe "CVE-2024-49761 is resisted by" do
+    it "the Regexp implementation handling that regular expression in linear time" do
+      Regexp.linear_time?(/&#0*((?:\d+)|(?:x[a-fA-F0-9]+));/).should == true
+    end
+  end
+end