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.
History

Thu, 18 Jun 2026 04:45:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 17 Jun 2026 05:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Important


Tue, 16 Jun 2026 19:30:00 +0000

Type Values Removed Values Added
References

Tue, 16 Jun 2026 16:45:00 +0000

Type Values Removed Values Added
Description 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.
Title Pacemaker: pacemaker: denial of service via integer overflow in remote message decompression
First Time appeared Redhat
Redhat enterprise Linux
Redhat openshift
Weaknesses CWE-190
CPEs cpe:/a:redhat:openshift:4
cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
Redhat openshift
References
Metrics cvssV3_1

{'score': 8.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2026-06-16T15:57:38.911Z

Updated: 2026-06-17T13:50:56.974Z

Reserved: 2026-06-02T15:15:07.547Z

Link: CVE-2026-10649

cve-icon Vulnrichment

Updated: 2026-06-16T17:42:34.626Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-06-16T17:16:30.773

Modified: 2026-06-16T19:16:30.490

Link: CVE-2026-10649

cve-icon Redhat

Severity : Important

Publid Date: 2026-06-16T00:00:00Z

Links: CVE-2026-10649 - Bugzilla