pcs before versions 0.9.164 and 0.10 is vulnerable to a debug parameter removal bypass. REST interface of the pcsd service did not properly remove the pcs debug argument from the /run_pcs query, possibly disclosing sensitive information. A remote attacker with a valid token could use this flaw to elevate their privilege.
https://www.debian.org/security/2018/dsa-4169
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1086