--- src/ooxml/java/org/apache/poi/openxml4j/opc/ZipPackage.java	(revision 1837169)
+++ src/ooxml/java/org/apache/poi/openxml4j/opc/ZipPackage.java	(date 1533220150178)
@@ -250,6 +250,9 @@ 
         final ZipArchiveEntry contentTypeEntry =
                 zipArchive.getEntry(CONTENT_TYPES_PART_NAME);
         if (contentTypeEntry != null) {
+            if (this.contentTypeManager != null) {
+                throw new InvalidFormatException("ContentTypeManager can only be created once. This must be a cyclic relation?");
+            }
             try {
                 this.contentTypeManager = new ZipContentTypeManager(
                         zipArchive.getInputStream(contentTypeEntry), this);
--- src/ooxml/testcases/org/apache/poi/openxml4j/opc/TestPackage.java	(revision 1837169)
+++ src/ooxml/testcases/org/apache/poi/openxml4j/opc/TestPackage.java	(date 1533219964426)
@@ -1090,6 +1090,21 @@ 
 		openInvalidFile("SampleSS.txt", true);
 	}
 
+	@Test(expected = InvalidFormatException.class)
+	public void testBug62592() throws Exception {
+		InputStream is = OpenXML4JTestDataSamples.openSampleStream("62592.thmx");
+		OPCPackage p = OPCPackage.open(is);
+	}
+
+	@Test
+	public void testBug62592SequentialCallsToGetParts() throws Exception {
+		//make absolutely certain that sequential calls don't throw InvalidFormatExceptions
+		String originalFile = OpenXML4JTestDataSamples.getSampleFileName("TestPackageCommon.docx");
+		OPCPackage p2 = OPCPackage.open(originalFile, PackageAccess.READ);
+		p2.getParts();
+		p2.getParts();
+	}
+
 	@Test
 	public void testDoNotCloseStream() throws IOException {
 		OutputStream os = Mockito.mock(OutputStream.class);