CVE-2018-1086
pcs before versions 0.9.164 and 0.10 is vulnerable to a debug parameter removal bypass.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.92%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 1.92% probability · 80th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-20, CWE-200
- Affected
- clusterlabs/pacemaker command line interface · debian/debian linux · redhat/enterprise linux server eus
- Source
- secalert@redhat.com
EPSS 1.9% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://access.redhat.com/errata/RHSA-2018:1060Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:1927Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1086Issue Tracking, Third Party Advisory
- https://www.debian.org/security/2018/dsa-4169Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:1060Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:1927Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1086Issue Tracking, Third Party Advisory
- https://www.debian.org/security/2018/dsa-4169Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.