If an LDAP user's DN contains a backslash (\) character, JBoss ON fails to authenticate the user

Solution Verified - Updated -


  • Authentication fails when user has "\," in it's LDAP CN
  • server.log contains this error:

    INFO  [org.rhq.enterprise.server.core.jaas.LdapLoginModule] Failed to validate password: [LDAP: error code 49 - 80090308: LdapErr: DSID-0C0903A9, comment: AcceptSecurityContext error, data 52e, v1db1
  • User login fails and the following error appears in the server log:

    INFO  [org.rhq.enterprise.server.core.jaas.LdapLoginModule] Failed to validate password: [LDAP: error code 49 - cannot bind the principalDn.]
  • Backslashes (\) are not properly handled when they appear in a distinguished name (DN)


  • Red Hat JBoss Operations Network (ON) 3.1.2
  • JBoss ON server has been configured to use LDAP for user authentication
  • Affected user has a backslash () in their DN:

    dn: cn=Charles H\\Samlin,ou=users,dc=test,dc=rhq,dc=redhat,dc=com

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