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DEBIAN-CVE-2026-84828

Type: advisorySource: OSV1 source record

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.

Announced Source revision 1
Original source ↗

DEBIAN-CVE-2026-84828

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:DEBIAN-CVE-2026-84828

pcs

Source reference: /affected/0/package/name

Affected versions
0.11.5-1

Source reference: /affected/0/versions

0.11.5-1+deb12u1

Source reference: /affected/0/versions

0.11.6-1

Source reference: /affected/0/versions

0.11.6-2

Source reference: /affected/0/versions

0.11.7-1

Source reference: /affected/0/versions

0.11.7-2

Source reference: /affected/0/versions

0.11.7-3

Source reference: /affected/0/versions

0.11.9-1

Source reference: /affected/0/versions

0.12.0-1

Source reference: /affected/0/versions

0.12.0-2

Source reference: /affected/0/versions

0.12.0.2-1

Source reference: /affected/0/versions

0.12.1-1

Source reference: /affected/0/versions

0.12.1-2

Source reference: /affected/0/versions

0.12.2-1

Source reference: /affected/0/versions

0.12.2-2

Source reference: /affected/0/versions

0.12.3-1

Source reference: /affected/0/versions

0.12.3.1-1

Source reference: /affected/0/versions

Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

pcs

Source reference: /affected/1/package/name

Affected versions
0.12.0.2-1

Source reference: /affected/1/versions

0.12.1-1

Source reference: /affected/1/versions

0.12.1-2

Source reference: /affected/1/versions

0.12.2-1

Source reference: /affected/1/versions

0.12.2-2

Source reference: /affected/1/versions

0.12.3-1

Source reference: /affected/1/versions

0.12.3.1-1

Source reference: /affected/1/versions

Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

pcs

Source reference: /affected/2/package/name

Affected versions
0.12.0.2-1

Source reference: /affected/2/versions

0.12.1-1

Source reference: /affected/2/versions

0.12.1-2

Source reference: /affected/2/versions

0.12.2-1

Source reference: /affected/2/versions

0.12.2-2

Source reference: /affected/2/versions

0.12.3-1

Source reference: /affected/2/versions

Fixed versions
0.12.3.1-1

Source reference: /affected/2/ranges

Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "pcs",
      "purl": "pkg:deb/debian/pcs?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "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",
      "0.12.0-1",
      "0.12.0-2",
      "0.12.0.2-1",
      "0.12.1-1",
      "0.12.1-2",
      "0.12.2-1",
      "0.12.2-2",
      "0.12.3-1",
      "0.12.3.1-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-84828.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "pcs",
      "purl": "pkg:deb/debian/pcs?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "0.12.0.2-1",
      "0.12.1-1",
      "0.12.1-2",
      "0.12.2-1",
      "0.12.2-2",
      "0.12.3-1",
      "0.12.3.1-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-84828.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "0.12.3.1-1"
          }
        ]
      }
    ],
    "package": {
      "name": "pcs",
      "purl": "pkg:deb/debian/pcs?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "0.12.0.2-1",
      "0.12.1-1",
      "0.12.1-2",
      "0.12.2-1",
      "0.12.2-2",
      "0.12.3-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-84828.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#58513 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement