DEBIAN-CVE-2026-84828
Dashboard / Vulnerabilities / DEBIAN-CVE-2026-84828
Summary:
Details: 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.
Affected packages
Package
Name: pcs
Purl: pkg:deb/debian/pcs?arch=source&distro=bookworm
Affected ranges
Type: ECOSYSTEM
Events:
Introduced- 0
Fixed -None
Affected versions
0.11.5-1
0.11.5-1+deb12u1
0.11.6-1
0.11.6-2
0.11.7-1
0.11.7-2
0.11.7-3
0.11.9-1
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
