HighFix available
pacemaker — security advisory
An ACL bypass flaw was found in pacemaker. An attacker having a local account on the cluster and in the haclient group could use IPC communication with various daemons directly to perform certain tasks that they would be prevented by ACLs from doing if they went through the configuration.
- Products
- pacemaker
- Affected versions
- Not specified
- Fixed versions
- 2.0.5~rc2-1
- CVEs
- CVE-2020-25654
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 13:08 UTC · Revision 1
Source evidence
An ACL bypass flaw was found in pacemaker. An attacker having a local account on the cluster and in the haclient group could use IPC communication with various daemons directly to perform certain tasks that they would be prevented by ACLs from doing if they went through the configuration.
osv:DEBIAN-CVE-2020-25654
pacemaker
Fixed versions: 2.0.5~rc2-1
pacemaker
Fixed versions: 2.0.5~rc2-1
pacemaker
Fixed versions: 2.0.5~rc2-1
Complete source record
{
"id": "d8a8fa14ca348f8f6a2ed74bf60fbfaa90442a10c6c6772339aab7fb7c83a963",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2020-25654",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2020-25654",
"summary": "An ACL bypass flaw was found in pacemaker. An attacker having a local account on the cluster and in the haclient group could use IPC communication with various daemons directly to perform certain tasks that they would be prevented by ACLs from doing if they went through the configuration.",
"evidence": "osv:DEBIAN-CVE-2020-25654",
"products": [
{
"name": {
"value": "pacemaker",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.0.5~rc2-1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "pacemaker",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.0.5~rc2-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "pacemaker",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.0.5~rc2-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2020-25654",
"aliases": [
"DEBIAN-CVE-2020-25654"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.0.5~rc2-1"
}
]
}
],
"package": {
"name": "pacemaker",
"purl": "pkg:deb/debian/pacemaker?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-25654.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.0.5~rc2-1"
}
]
}
],
"package": {
"name": "pacemaker",
"purl": "pkg:deb/debian/pacemaker?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-25654.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.0.5~rc2-1"
}
]
}
],
"package": {
"name": "pacemaker",
"purl": "pkg:deb/debian/pacemaker?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-25654.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-26T12:01:47.848474755Z",
"provider": "osv",
"upstream": [
"CVE-2020-25654"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2020-25654"
]
},
"related_cves": [
{
"value": "CVE-2020-25654",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 451845,
"published_at": "2020-11-24T20:15:11.79+00:00"
}