DEBIAN-CVE-2026-10649
A flaw was found in Pacemaker. An unauthenticated remote attacker can exploit an integer overflow vulnerability in the remote message decompression process. By sending a specially crafted compressed remote message before authentication, an attacker can cause memory corruption, leading to a denial of service (DoS) in the CIB remote listener. This can result in the affected service crashing.
DEBIAN-CVE-2026-10649
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-2026-10649
pacemaker
Source reference: /affected/0/package/name
- Affected versions
- 2.1.5-1
Source reference:
/affected/0/versions2.1.5-1+deb12u1Source reference:
/affected/0/versions2.1.6-1Source reference:
/affected/0/versions2.1.6-2Source reference:
/affected/0/versions2.1.6-3Source reference:
/affected/0/versions2.1.6-4Source reference:
/affected/0/versions2.1.6-4.1Source reference:
/affected/0/versions2.1.6-4.1~exp1Source reference:
/affected/0/versions2.1.6-5Source reference:
/affected/0/versions2.1.7-1Source reference:
/affected/0/versions2.1.8-1Source reference:
/affected/0/versions2.1.8~rc1-1Source reference:
/affected/0/versions2.1.8~rc3-1Source reference:
/affected/0/versions2.1.8~rc4-1Source reference:
/affected/0/versions3.0.0-1Source reference:
/affected/0/versions3.0.0-2Source reference:
/affected/0/versions3.0.1-1Source reference:
/affected/0/versions3.0.1-1.1Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
pacemaker
Source reference: /affected/1/package/name
- Affected versions
- 3.0.0-2
Source reference:
/affected/1/versions3.0.1-1Source reference:
/affected/1/versions3.0.1-1.1Source reference:
/affected/1/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
pacemaker
Source reference: /affected/2/package/name
- Affected versions
- 3.0.0-2
Source reference:
/affected/2/versions3.0.1-1Source reference:
/affected/2/versions3.0.1-1.1Source reference:
/affected/2/versions - Fixed versions
- Not stated in this record
- 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": "pacemaker",
"purl": "pkg:deb/debian/pacemaker?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"2.1.5-1",
"2.1.5-1+deb12u1",
"2.1.6-1",
"2.1.6-2",
"2.1.6-3",
"2.1.6-4",
"2.1.6-4.1",
"2.1.6-4.1~exp1",
"2.1.6-5",
"2.1.7-1",
"2.1.8-1",
"2.1.8~rc1-1",
"2.1.8~rc3-1",
"2.1.8~rc4-1",
"3.0.0-1",
"3.0.0-2",
"3.0.1-1",
"3.0.1-1.1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-10649.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "pacemaker",
"purl": "pkg:deb/debian/pacemaker?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"3.0.0-2",
"3.0.1-1",
"3.0.1-1.1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-10649.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "pacemaker",
"purl": "pkg:deb/debian/pacemaker?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"3.0.0-2",
"3.0.1-1",
"3.0.1-1.1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-10649.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #55406 · Revision 1
- Added to Heist Feed
- Publisher date