The condor_schedd component in HTCondor before 8.6.8 and 8.7.x before 8.7.5 allows remote authenticated users to cause a denial of service (daemon crash) by leveraging use of GSI and VOMS extensions.
https://www-auth.cs.wisc.edu/lists/htcondor-users/2017-November/msg00022.shtml
http://research.cs.wisc.edu/htcondor/security/vulnerabilities/HTCONDOR-2017-0001.html