diff --git a/Lib/test/test_cgi.py b/Lib/test/test_cgi.py
index 3b6f59b26e6..985de11d5ee 100644
--- a/Lib/test/test_cgi.py
+++ b/Lib/test/test_cgi.py
@@ -155,6 +155,7 @@ class CgiTests(unittest.TestCase):
             cgi.logfp = None
             cgi.logfile = "/dev/null"
             cgi.initlog("%s", "Testing log 3")
+            self.addCleanup(cgi.logfp.close)
             cgi.log("Testing log 4")
 
     def test_fieldstorage_readline(self):
diff --git a/Misc/NEWS b/Misc/NEWS
index bcfeb4a2cd6..25cad9ef3f7 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -54,6 +54,8 @@ Build
 Tests
 -----
 
+- Issue #10512: Properly close sockets under test.test_cgi.
+
 - Issue #10992: Make tests pass under coverage.
 
 - Issue #10826: Prevent sporadic failure in test_subprocess on Solaris due