HashiCorp Nomad and Nomad Enterprise 1.0.17, 1.1.11, and 1.2.5 allow invalid HCL for the jobs parse endpoint, which may cause excessive CPU usage. Fixed in 1.0.18, 1.1.12, and 1.2.6.
https://github.com/advisories/GHSA-3382-r9q8-4hfg
https://security.netapp.com/advisory/ntap-20220331-0007/