A flaw was found in PCS (Pacemaker Configuration System). A local attacker with membership in the 'haclient' group can exploit the 'pcs host auth --token' command to read the contents of arbitrary files on the filesystem, provided the files are shorter than 256 bytes. The file contents are read with root privileges by the pcsd daemon and can be exfiltrated by the attacker through subsequent cluster node communication. This allows disclosure of sensitive data such as API keys, tokens, or configuration secrets that would otherwise be inaccessible to the attacker.
Metrics
Affected Vendors & Products
References
History
Thu, 10 Sep 2026 11:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A flaw was found in PCS (Pacemaker Configuration System). A local attacker with membership in the 'haclient' group can exploit the 'pcs host auth --token' command to read the contents of arbitrary files on the filesystem, provided the files are shorter than 256 bytes. The file contents are read with root privileges by the pcsd daemon and can be exfiltrated by the attacker through subsequent cluster node communication. This allows disclosure of sensitive data such as API keys, tokens, or configuration secrets that would otherwise be inaccessible to the attacker. | |
| Title | Pcs: pcs: non-root haclient users can read arbitrary files via pcs host auth --token | |
| First Time appeared |
Redhat
Redhat enterprise Linux Redhat openshift Redhat openstack |
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| Weaknesses | CWE-732 | |
| CPEs | cpe:/a:redhat:openshift:4 cpe:/a:redhat:openstack:16.2 cpe:/a:redhat:openstack:17.1 cpe:/o:redhat:enterprise_linux:10 cpe:/o:redhat:enterprise_linux:8 cpe:/o:redhat:enterprise_linux:9 |
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| Vendors & Products |
Redhat
Redhat enterprise Linux Redhat openshift Redhat openstack |
|
| References |
| |
| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: redhat
Published: 2026-09-10T11:20:41.215Z
Updated: 2026-09-10T11:20:41.215Z
Reserved: 2026-09-02T11:16:21.739Z
Link: CVE-2026-84828
No data.
Status : Received
Published: 2026-09-10T12:16:33.837
Modified: 2026-09-10T12:16:33.837
Link: CVE-2026-84828
No data.