Fixed #2999

Author: cowtowncoder

release-notes/VERSION-2.x

@@ -14,6 +14,8 @@ Project: jackson-databind
  (reported by Al1ex@knownsec)
 #2998: Block 2 more gadget types (org.apache.tomcat/tomcat-dbcp)
  (reported by Al1ex@knownsec)
+#2999: Block 1 more gadget type (org.glassfish.web/javax.servlet.jsp.jstl)
+ (reported by bu5yer of Sangfor FarSight Security Lab)
 
 2.9.10.7 (02-Dec-2020)
 

src/main/java/com/fasterxml/jackson/databind/jsontype/impl/SubTypeValidator.java

@@ -226,6 +226,10 @@ public class SubTypeValidator
         s.add("org.apache.tomcat.dbcp.dbcp2.datasources.PerUserPoolDataSource");
         s.add("org.apache.tomcat.dbcp.dbcp2.datasources.SharedPoolDataSource");
 
+        // [databind#2999]: org.glassfish.web/javax.servlet.jsp.jstl (embedded Xalan)
+        // (derivative of #2469)
+        s.add("com.oracle.wls.shaded.org.apache.xalan.lib.sql.JNDIConnectionPool");
+
         DEFAULT_NO_DESER_CLASS_NAMES = Collections.unmodifiableSet(s);
     }